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Chemistry Lecture 6 For General Chemistry and InOrganic Chemistry — Transcript

by Jan Bernel Padolina · 7,167 words · 1,443 segments · language en · Watch on YouTube

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  1. 0:01Okay class. Uh I'm recording this
  2. 0:03session. This one is chapter 6
  3. 0:07nomenclature of inorganic compounds.
  4. 0:11Okay.
  5. 0:16So why why is there a need no to name no
  6. 0:21inorganic compounds?
  7. 0:24So ibig sabihin no um itong chapter na
  8. 0:27ito is dedicated no not for organic no
  9. 0:30but for those who don't have no long
  10. 0:34chains of hydrocarbons. example
  11. 0:37no um we have here
  12. 0:41okay uh this
  13. 0:44se shells no yan which are formed
  14. 0:48with calcium carbonate no so calcium
  15. 0:51carbonate yung main compound niya and
  16. 0:53this is the chemical formula no
  17. 0:57it is also known as limestone
  18. 1:02yung um common name niya No. Okay. Uh
  19. 1:07this compound is also used in many
  20. 1:10dietary supplement, no? So ginagamit din
  21. 1:13siya for um
  22. 1:16calcium supplement.
  23. 1:18Okay? Ayun. However, no, if you don't
  24. 1:21need calcium supplement, don't take it
  25. 1:24ha because there are studies no linking
  26. 1:27um
  27. 1:29consumption of calcium supplements to
  28. 1:32what you call this calcified arteries no
  29. 1:35may mga ganong studies kasi. Ayan.
  30. 1:39Okay, sige move tayo. Now, this is the
  31. 1:42chapter outline. Okay, of course we talk
  32. 1:45about common and systematic names,
  33. 1:48elements and ions. Writing formulas from
  34. 1:51names of ionic compounds.
  35. 1:54No, binary compounds. Naming compounds
  36. 1:58containing polyatomic ions.
  37. 2:02Okay. Acids, binary acids, no. Ayan,
  38. 2:06chemical nomenclature, no.
  39. 2:08Yan. So ito yung ito yung ating outline
  40. 2:10class.
  41. 2:12Okay.
  42. 2:14So 6.1. This is the first part of this
  43. 2:17chapter no chemical nomenclature
  44. 2:22is the systematic naming of chemical
  45. 2:25compounds.
  46. 2:27Okay? So ito iyung goal natin to learn
  47. 2:30no? Chemical nomenclature.
  48. 2:33Then there are common names
  49. 2:36no are arbitrary names that are not
  50. 2:40based on chemical composition of the
  51. 2:43compound. No. Sige nga class, can you
  52. 2:46give me a example of common name?
  53. 2:51Halimbawa ito class
  54. 2:54na A CL.
  55. 2:58What's the common name for this?
  56. 3:04Pag nakita niyo 'tong ano na 'to ah
  57. 3:06compound na 'to, what's the common name?
  58. 3:09Sige nga pa-chat nga ng common name
  59. 3:11'yan.
  60. 3:12Ayun. Basically
  61. 3:14salt no. Ito to tamang sagot.
  62. 3:18Pag nakakita kayo ng ano ng compound
  63. 3:20sinabi NaCl matic ang sinasabi ninyo '
  64. 3:24ba salt. However, sa chemistry hindi
  65. 3:29lang naman ito ang salt no.
  66. 3:34Ayun. So magnesium chloride is also a
  67. 3:36salt no. Ayun. and others no? Ah
  68. 3:40potassium chloride is also a salt no. So
  69. 3:44pero siya yung sikat no ah
  70. 3:48named no salt o ano yung kanyang ano ah
  71. 3:53scientific or chemical nomenclature?
  72. 3:57How would you call this? Ito to to
  73. 4:01o ito yung kanyang common common name
  74. 4:03'di ba?
  75. 4:04Okay. What about uh chemical
  76. 4:07nomenclature?
  77. 4:12Ayan no. So we call this
  78. 4:15sodium chloride. Ayan no. Okay.
  79. 4:22Ayan.
  80. 4:24So magkaiba no yung chemical and common
  81. 4:27name. Noan.
  82. 4:31Okay. Example no
  83. 4:34nitrus oxide
  84. 4:38common name ising
  85. 4:41gas.
  86. 4:42Okay. Ayan.
  87. 4:47Okay. Ito pa. Teka. Ito pala yung ano
  88. 4:49kanyang ano systematic name.
  89. 4:52Dinitrogen monoxide. No? Okay.
  90. 5:00Yan. Common names reveal nating uh but
  91. 5:04physical and chemical property of a
  92. 5:08compound. Noan.
  93. 5:14Okay yan example no common names are
  94. 5:18often used because systematic names are
  95. 5:21too long and technical for everyday use.
  96. 5:25Okay? Okay. Calcium oxide ito. So common
  97. 5:29name is line.
  98. 5:32Then we have calcium oxide.
  99. 5:41Okay. Um,
  100. 5:43most chemist no prefer systematic names
  101. 5:47that precisely identify the chemical
  102. 5:49composition of a compound. No'no? So
  103. 5:54okay 'yung common name it won't tell you
  104. 5:57no how many uh elements of this
  105. 6:00particular atom is included no but
  106. 6:03systematic name would tell us how many
  107. 6:07no um
  108. 6:09what you call this atoms no of an
  109. 6:13element is included. Ayan. So for
  110. 6:16example,
  111. 6:18calcium oxide. Okay. Since isa lang
  112. 6:21naman yung calcium, ito siya.
  113. 6:25Isa lang din yung umxygen.
  114. 6:29O ano. So this uh systematic name, okay
  115. 6:34tells us yan yung ano composition niya,
  116. 6:37no? Okay. The common name is uh lime. No
  117. 6:42ayan. So ah with this name you won't
  118. 6:46know ilan iyung calcium, ilan iyung
  119. 6:49oxygen no?
  120. 6:52Ayan. Now the system of nomenclature was
  121. 6:55devised no by the international union of
  122. 6:59pure and applied chemistry. So yung
  123. 7:01tinatawag na ano ah ayupacak no pag
  124. 7:06inabbreviate natin siya.
  125. 7:11Ayan.
  126. 7:12Ito yun. Ito yung ibig sabihin niya ha.
  127. 7:18Okay.
  128. 7:22Okay. Now, nomenclature of inorganic
  129. 7:25compounds. No, number of elements
  130. 7:28present.
  131. 7:29If there is
  132. 7:31only one element
  133. 7:35present, it is classified as element.
  134. 7:43If there are two no elements, so we have
  135. 7:46a binary compounds. Three or more we
  136. 7:50have a polyatomic
  137. 7:52compound no yan. So isang element lang
  138. 7:56element.
  139. 7:58Two elements, no? Okay. We have a
  140. 8:01binary. And then polyatomic compounds if
  141. 8:05we have three, no? Yan.
  142. 8:18Okay. The formula for most elements
  143. 8:23is a symbol of the element, no? Ayan.
  144. 8:26So, sodium is Na. Teka, iano ko na nga
  145. 8:30muna. Okay. Certain elements exist as
  146. 8:34polyatomic multiatom molecules under
  147. 8:37standard condition. No, ayan. Seven
  148. 8:40elements exist as diatomic molecules.
  149. 8:44Contain two atom units. No, ito sila daw
  150. 8:48yon.
  151. 8:49hydrogen, oxygen, nitrogen,
  152. 8:53fluoride, no chlorine,
  153. 8:56bromine, iodine.
  154. 9:00Okay. Now, two other elements exist no
  155. 9:03in uh polyatomic
  156. 9:07arrangement. So sila no diatomic
  157. 9:13molecules
  158. 9:15while this no two other elements
  159. 9:19okay they are elements isa isang element
  160. 9:22lang sila but they can have no more than
  161. 9:26um
  162. 9:28they can have more than two no for
  163. 9:30example sulfur can have eight phosphorus
  164. 9:34can have four no So they are polyatomic
  165. 9:40no. Ayan.
  166. 9:46Okay. So
  167. 9:50not all classified as element ha. Laging
  168. 9:52ah dalawa lang no. Ito yung mga
  169. 9:56especially itong mga ito no.
  170. 9:58Okay. May mga elements that can have
  171. 10:02more. Okay.
  172. 10:09Okay. Now, what are ions? No, I are
  173. 10:13charged particle,
  174. 10:15no? Okay. Can be produced by adding or
  175. 10:19removing electrons, no? From a neutral
  176. 10:24atom.
  177. 10:28Example class [sumisingasing]
  178. 10:31okay a neutral potassium
  179. 10:36atom contains 19 protons and 19
  180. 10:41electrons.
  181. 10:43Okay? Ah during a
  182. 10:46ionic bond no ah it would transfer no
  183. 10:51one electron to its counterpart ' ba.
  184. 10:55ang role niya is ganito. So you have
  185. 10:57your sodium, may isa siyang electron.
  186. 11:01Ah this electron will be given no to its
  187. 11:05counterpart.
  188. 11:06So instead of having no um a balance no
  189. 11:1219 proton and 19 electron which would
  190. 11:15render zero charge
  191. 11:19dahil nga nagbigay siya ng isang
  192. 11:21electron no it would make
  193. 11:24your sodium
  194. 11:27no
  195. 11:29positive so magkakaroon siya ng charge.
  196. 11:33Ayun.
  197. 11:36Ay sorry potassium pala.
  198. 11:38Okay.
  199. 11:40Wait wait wait wait wait.
  200. 11:43Potassium no? Ayan.
  201. 11:47So ang tendency is to give no
  202. 11:52one electron. Ayan. Wala pa kasi akong
  203. 11:55kape no.
  204. 11:57[tawanan][sumisinghap] Ayan. So one
  205. 11:59electron no'no. So it would uh make this
  206. 12:03K plus. Ayan sorry.
  207. 12:05Okay. Now,
  208. 12:09okay. So yung potassium natin is now an
  209. 12:11ion. An ion no? Cold cat ion. Okay.
  210. 12:18Ayun.
  211. 12:20Hala.
  212. 12:22[tawanan]
  213. 12:24Ayan. Wait lang class ha. Magsi-zip lang
  214. 12:27ako ng coffee ko. [tawanan]
  215. 12:32Ang lamig kasi ba 'yan? Okay.
  216. 12:37Ayan. So tandaan class ha. Um yung ions
  217. 12:40napo-form siya with changes no in the
  218. 12:43number of electron no.
  219. 12:46So
  220. 12:48by adding
  221. 12:50okay you are forming an ion. By removing
  222. 12:54electrons you are forming cut ions no'
  223. 12:57gann lang naman.
  224. 13:02Okay another no? Okay.
  225. 13:07Saan na tayo? Cat ions no? Okay. Any
  226. 13:11neutral atoms that loses an electron
  227. 13:14forms a cution. No an atom may lose more
  228. 13:18than one electron. So kanina iyung
  229. 13:21example natin it's um
  230. 13:25potassium no? Okay.
  231. 13:28Then we also have magnesium.
  232. 13:31Yung magnesium kasi is group 2A if you
  233. 13:35recall no. So meron siyang two valence
  234. 13:39electron
  235. 13:40so that those valence electron can be
  236. 13:43loose no?
  237. 13:45Making him or this magnesium have 2
  238. 13:49plus. Ayan. So pwede siyang magkaroon ng
  239. 13:512 plus no? Ayan nag-loose siya ng two
  240. 13:55electrons. Ah another case is aluminum.
  241. 14:00Okay. Nag-loose siya ng tatlong
  242. 14:02electrons. Ayan. So ang nangyari meron
  243. 14:05siyang 3 plus. Okay. Ayun. So basically
  244. 14:10agag naglo-loose ng electron, the charge
  245. 14:13is positive.
  246. 14:15Okay. Teka lagay ko dito. Losing
  247. 14:21electron.
  248. 14:23If you're gaining electrons, so negative
  249. 14:26yung charge no kapag gaining.
  250. 14:33Okay. Ba't naman sodium yung nasulat ko
  251. 14:35doun? Ano? Potassium pala. Okay. Ayan.
  252. 14:40So ito siya ha. Okay.
  253. 14:47Okay. Now uh an ions no? So tandaan ha.
  254. 14:51Cut ion is positive and ion is negative.
  255. 14:56Ayan. So
  256. 14:59a neutral chlorine atom yan ang sabi
  257. 15:02dito meron daw siyang 17 protons and 17
  258. 15:06electrons.
  259. 15:09Normally si chlorine ano in an ionic no
  260. 15:14bond ah recipient siya no? More tendency
  261. 15:18to accept electron no. Ayan. So ang
  262. 15:22tendency it would accept additional one
  263. 15:25electron no. So ang mangyayari is 17
  264. 15:29protons,
  265. 15:3118 electrons, no? Making your chlorine
  266. 15:36negative no? Yung charge.
  267. 15:40Okay.
  268. 15:42Okay.
  269. 15:44Yan. An atom may also
  270. 15:48gain more than one electron. Ang
  271. 15:51magandang example natin that could gain
  272. 15:55more than one electron. Example natin si
  273. 15:58oxygen no and yung mga kagrupo niya no.
  274. 16:02Ayun ' ba sa si oxygen sa periodic table
  275. 16:05if you look then vertically yun yung mga
  276. 16:08ka-group niya.
  277. 16:11Okay. So yung mga ka-group niya class uh
  278. 16:13they can accept also no more than one
  279. 16:17electron. Okay.
  280. 16:22Okay. Class may questions ba sa
  281. 16:26formation ng ions?
  282. 16:29Okay. Basta yung logic natin ha. Ta-type
  283. 16:31ko. Kapag positive yung charge niya ibig
  284. 16:33sabihin
  285. 16:35loses elect negative.
  286. 16:42Charge. Teka
  287. 16:46teka teka teka.
  288. 16:49Hello hello hello yan. Negative charge
  289. 16:54gained.
  290. 16:56Ayan.
  291. 16:59Okay class. May questions ba? So far may
  292. 17:01questions?
  293. 17:09Tulog na yata ulit.
  294. 17:13Okay. Pasensya na kanina ha. [tawanan]
  295. 17:16Potassium palang pinag-uusapan ng
  296. 17:18sinulat ko. Sodium no na sobrang
  297. 17:22ano pa. Tulog pa ano? Tulog pa.
  298. 17:25Maya-maya
  299. 17:27gising na 'yan. Okay. Sige.
  300. 17:31Wala. Naintindihan niyo na? Maliwanag
  301. 17:33'yung uh
  302. 17:36maliwanag yung sa ano ha um
  303. 17:39formation nung ions and cut.
  304. 17:46Okay din yung pinagkaiba ng common name
  305. 17:48and uh chemical nomenclature na yung
  306. 17:53scientific nomenclature niya. No? Ayun.
  307. 17:58Okay.
  308. 18:00So sige uh naming an ions. So
  309. 18:03magpapangalan na tayo ng anons 'no.
  310. 18:07Okay.
  311. 18:09So ito 'yung ah atoms.
  312. 18:13Okay.
  313. 18:16Ah common iyung name niya is fluorine in
  314. 18:20its uh ionic form. Okay. Ah instead na
  315. 18:27yung dulo, no, it will be replaced with
  316. 18:30IDE. Ayan. So from florine it will
  317. 18:35become fluoride,
  318. 18:38no? Ayan.
  319. 18:40another no chlorine chloride
  320. 18:44bromine bromide ayan and so on no ayan
  321. 18:50so
  322. 18:52the name of an ion no ends with
  323. 18:58no ide
  324. 19:01aan so an ion
  325. 19:05okayan
  326. 19:10Okay. Predicting cut ion charges.
  327. 19:14Ayan. So nakita niyo 'to ano? Itong
  328. 19:16banda rito.
  329. 19:19So group 1A
  330. 19:21all of them would have ito to to no
  331. 19:27one plus dito.
  332. 19:30Okay? Group 2A all of them would have 2
  333. 19:34plus
  334. 19:36yan.
  335. 19:39Okay.
  336. 19:40Normally uh sa ionic bond kasi no ayan.
  337. 19:47Okay. Itong mga metals no they have the
  338. 19:50tendency to give electrons while
  339. 19:55okay yung mga nandito
  340. 19:58except with the noble gas. Hindi kasali
  341. 20:00to.
  342. 20:06Okay.
  343. 20:09Yung mga nandito yan ito. So they have
  344. 20:12the tendency to accept no electrons.
  345. 20:16Ayan.
  346. 20:18Now, what about the transition metals?
  347. 20:20No, yung transition metals, they are
  348. 20:23called transition metals, no? They can
  349. 20:25have
  350. 20:27two or more no
  351. 20:30oxidation state. For example, ito
  352. 20:33chromium.
  353. 20:35Yung chromium can have 2 plus can also
  354. 20:39have 3 plus
  355. 20:42iron ' ba pwede siyang magkaroon ng um
  356. 20:46feric and ferus. Ayan
  357. 20:50minsan sinusulat ng ano ah Roman numeral
  358. 20:53no ayan. So meron tayong 2 plus,
  359. 20:57meron tayong 3+ no? Ayan and so on.
  360. 21:02That's why they named transition metals,
  361. 21:05no? Ayan.
  362. 21:09Okay. Then um
  363. 21:13wait lang meron pa pala no sa group 3A.
  364. 21:18Okay. Ito naman
  365. 21:21like aluminum no they can um give no or
  366. 21:27provide three no okay uh electrons no
  367. 21:32they can give up no three electrons.
  368. 21:41Okay.
  369. 21:44Um nonmetal no forms an ion.
  370. 21:48Okay
  371. 21:51yan. Ito yung mga example natin.
  372. 21:57Okay? If they are member of the group 5,
  373. 22:036A,
  374. 22:057A no pababa.
  375. 22:08Ayan. Ito yung mga pwede nilang i
  376. 22:12gain no na electron. For example, 7A
  377. 22:16they are ready to accept one electron.
  378. 22:21Ito naman 2
  379. 22:23electron. Ito naman 3 electron. No so
  380. 22:28normally nandito yung mga ano natin
  381. 22:30tinatawag nating anons dito naman sa
  382. 22:33side na to.
  383. 22:36Okay. Ito yung
  384. 22:39cut ions no?
  385. 22:44An ions. Ayan.
  386. 22:47Okay.
  387. 22:50Ayan. Sige.
  388. 22:53So writing formulas
  389. 22:56ah
  390. 22:57from names of ionic compounds. Ayan.
  391. 23:02So ionic compounds contain both cut ion
  392. 23:07andion
  393. 23:09no? Okay.
  394. 23:13So yung example natin kanina no sodium
  395. 23:15chloride okay salt or table salt
  396. 23:21ionic compounds must have a net charge
  397. 23:24of zero. No, dapat sa zero iyung charge
  398. 23:26nila for them to be stable, no? Ayan.
  399. 23:31So, okay.
  400. 23:35Example here, sodium bromide.
  401. 23:39Okay. So, dalawang ions yung meron tayo
  402. 23:42dito, no?
  403. 23:44Ayan.
  404. 23:46So, meron tayong ah sodium
  405. 23:49ah cut ion. Meron tayong bromide no na
  406. 23:53anion.
  407. 23:55Now you have a positive
  408. 23:58negative that would be equal to zer. Ito
  409. 24:02yung mabubuo sodium bromide no? Ayan.
  410. 24:08Another. Paano pa ganito? Potassium
  411. 24:11sulphide
  412. 24:12hindi balance 'di ba? Yung um potassium
  413. 24:16natin is just 1 plus yung sulfur natin
  414. 24:22no.
  415. 24:24Ayan. It's it's
  416. 24:262-
  417. 24:30common multiple
  418. 24:32no. Okay. Ang gagawin class no kailangan
  419. 24:37dalawa yung potassium na counterpart
  420. 24:41no? So ang mangyayari
  421. 24:43yung one mo no. Since dalawang ah
  422. 24:47potassium ang gagamitin mo, may
  423. 24:49multiplier na two. Hence iyung magiging
  424. 24:52formula is K2S. No? Bakit? Kasi dalawang
  425. 24:58ah potassium yung kailangan no with a
  426. 25:00single sulfure.
  427. 25:05Okay. What about this one? Zinc
  428. 25:09sulfate. No. Okay. So meron tayong zinc
  429. 25:13na 2 plus and then we have no sulfate.
  430. 25:19Ayan.
  431. 25:20Okay. So there's no need for a
  432. 25:24multiplier kasi
  433. 25:26match naman yung kanilang ano charges. 2
  434. 25:30plus for the zinc, 2-fate,
  435. 25:34equal pa rin siya sa zero.
  436. 25:36Pero what if no? What if ah
  437. 25:42kailangan ng dalawang ano ah sulfate.
  438. 25:46So ang tendency kung iyung dalawa ang
  439. 25:47kailangan na sulfate doon tayo
  440. 25:49magkakaroon ng um parenthesis no tapos
  441. 25:54may number
  442. 25:56sa labas ng parenthesis no ayun.
  443. 26:02Okay.
  444. 26:04Ayan. Another
  445. 26:06ammonium
  446. 26:09phosphate.
  447. 26:10Ayan. Tignan niyo class.
  448. 26:15Okay. Ito yung sa ammonium.
  449. 26:18Ang charge niya is
  450. 26:21pos no? Or 1 plus.
  451. 26:24Pero ito,
  452. 26:27okay, 3 minus. So ibig sabihin you need
  453. 26:31three ammonium ion no to match it with a
  454. 26:37phosphate. So ang tendency class na
  455. 26:40nagkaroon ng multiplier na 3. Okay yung
  456. 26:43ating ammonium no? Ito
  457. 26:47indicating that we need 3 ammonium.
  458. 26:53Okay?
  459. 26:54Ayan. So ito iyung ammonium may open and
  460. 26:58close parenthesis and we also have
  461. 27:03three no na multiplier. Bakit? Kasi
  462. 27:06indicating na tatlo yung kailangan no to
  463. 27:09ah obtain a net charge of zero no? Ayan.
  464. 27:16So aluminum chromate ito. Okay. What if
  465. 27:21ganito? Ah pos 3 tapos
  466. 27:272-
  467. 27:29paano yung ganyan ' ba? So
  468. 27:33paano sila magba-balance? Ah paano sila
  469. 27:36magkakaroon ng zero no na ah charge?
  470. 27:41Okay. So what they need is iyung ang
  471. 27:44common least multiple nila is
  472. 27:51the least common multiple ah is 6. Ayan.
  473. 27:57Okay. So yung um
  474. 28:003+ 2 okay yung ah 2- multip 3 no? So ang
  475. 28:09tendency you would have 2 aluminum okay
  476. 28:14and then 3
  477. 28:16chromate no? Tatlo. Ayan. So that's how
  478. 28:22no we can uh write no the formulas.
  479. 28:26No. Um, from names of ionic compounds.
  480. 28:30Okay.
  481. 28:34Ayan. So, ito yung ano ah rules no.
  482. 28:40Okay. Number one is to write the metal
  483. 28:42ion uh formula no followed by
  484. 28:45nonmetallic or nonmetal
  485. 28:49ion formula.
  486. 28:52Okay. Um, combine the smallest wole
  487. 28:55number. of each ion to provide an
  488. 28:58overall charge equal to zero. No. And
  489. 29:01then number three, write the compound
  490. 29:04formula.
  491. 29:05Okay. For metal and nonmetal using
  492. 29:09subscripts, no? Determine from step two
  493. 29:14for each ion, no? Ayan.
  494. 29:18So ito yun.
  495. 29:23Okay. So
  496. 29:27uh right formula.
  497. 29:29Okay, for the metal and metal nonmetal
  498. 29:32ions. Okay.
  499. 29:36Yan.
  500. 29:38And then determine the number of each
  501. 29:41ion that will provide a net charge of
  502. 29:44zero. No so yan.
  503. 29:47Okay. So dito no 2+ 3- ito yun.
  504. 29:56Okay. So para mag-balance sila, um
  505. 30:00ilang barium yung kailangan mo? Tatlo.
  506. 30:03Kasi yung tatlo na to no this would
  507. 30:07produce
  508. 30:09okay 6 plus.
  509. 30:12Okay. Then this one,
  510. 30:16okay,
  511. 30:18meron kang
  512. 30:196 minus no. Then you'll have zero
  513. 30:24charge. No, ito yung magiging name po
  514. 30:26niya or formula no.
  515. 30:31Okay.
  516. 30:34Ayan. Sige nga class. Okay. Um,
  517. 30:39write the chemical formula for magnesium
  518. 30:41oxide. O, try nga.
  519. 30:46Okay. So,
  520. 30:49ah pag binasa natin siya no magnesium.
  521. 30:53So dapat ano ah isa lang no. Hindi.
  522. 30:57Okay. Ayan. Ito no.
  523. 31:02Okay. Umm. Mmm
  524. 31:06then oxide hindi naman sinabing dioxide
  525. 31:09trioxide. So um ag kung
  526. 31:12magka-cancellation tayo or mag um
  527. 31:15mi-minimiz iaano natin yung mga choices
  528. 31:17no. So tanggal na ' itong dalawa. So ah
  529. 31:24dalawa na lang yung possible choice no?
  530. 31:26Ayan. Pero since we know na yung um
  531. 31:30charge ng oxygen,
  532. 31:33okay, we have 2-
  533. 31:36tapos ang magnesium kasi ay belonging sa
  534. 31:40at group 2a.
  535. 31:42So meron siyang 2 plus, no? Ayan. So
  536. 31:45ibig sabihin tig-isahan lang yung
  537. 31:48kailangan nila no. Yan. So answer would
  538. 31:51be A. No. Okay. Um, if you recall nung
  539. 31:57high school kayo ' ba, okay, may
  540. 32:00pinapagawa pa sa inyo yung Chris Cross
  541. 32:03method ba? [sumisinghap]
  542. 32:06Okay. You remember that? Ayan. May
  543. 32:09paganon pa no?
  544. 32:13Okay. Ayan. So, pinakita no?
  545. 32:18Ayan. So may
  546. 32:212 + 2-
  547. 32:250 no?
  548. 32:29Ayan.
  549. 32:32Okay. So that's how we write the
  550. 32:36formula. No. Okay. From names of ionic
  551. 32:39compounds. Okay.
  552. 32:43Naming binary compounds. No, how do we
  553. 32:47name binary compounds? Okay.
  554. 32:53Teka. Parang nag-move yata yung slide.
  555. 32:56Ayan. Okay.
  556. 32:57Uh, binary compounds containing a metal
  557. 33:00which forms only one cut ion. Binary
  558. 33:03compounds containing a metal which can
  559. 33:06form multiple cut ions. Noan.
  560. 33:11So, binary compounds contain a metal
  561. 33:13which forms only one cut ion. Ito.
  562. 33:22Okay.
  563. 33:27Parang naulit 'to. Ayan.
  564. 33:31Okay. Name the compound ah magnesium
  565. 33:34bromide.
  566. 33:39Okay.
  567. 33:42The compound is okay. Okay. Provide the
  568. 33:45symbol.
  569. 33:47Okay. Tingin ko naman kaya niyo na to
  570. 33:49no? [sumisinghap] Ayan. Sige mag-name na
  571. 33:52lang tayo ulit.
  572. 33:54Ayan. So writing formulas for ionic
  573. 33:57compounds. What would be the formula
  574. 34:01no for this? Sige nga try.
  575. 34:09Letter C. Okay. Ah sige alamin natin
  576. 34:13bakit letter C. Sige nga try natin.
  577. 34:18Okay. Ah dun sa periodic table
  578. 34:22saang grupo nakalagay no si
  579. 34:26ah
  580. 34:27aluminum no? Okay ba nakagroup siya 3a
  581. 34:32ba.
  582. 34:33Tapos si oxygen naman is dalawa ang ah
  583. 34:38pwede niyang tanggapin eh no. So six.
  584. 34:41Okay. L na nga natin. So the correct
  585. 34:45answer no should be okay. Aluminum oxide
  586. 34:49no.
  587. 34:51Okay. Bakit hindi tayo gumamit ng Roman
  588. 34:54numeral no? Ah hindi siya transition
  589. 34:57metal no. Isa lang kasi yung ano niya
  590. 35:00yung ah charge na pwede no. Okay. So
  591. 35:06that's a 3 plus no 4
  592. 35:11aluminum. Okay.
  593. 35:15Ayan. Tapos uh for oxygen you have
  594. 35:202-
  595. 35:24oxygen.
  596. 35:26So sige lagay ko dito. 3+ 2- ginagawa
  597. 35:31niyo dati ba ginaganito.
  598. 35:33Ayan so ito daw number na to would go
  599. 35:36here. Dito
  600. 35:39number na to yung 3 plus would go here.
  601. 35:41So you would have
  602. 35:44Al2
  603. 35:46O3. Naalala niyo yun?
  604. 35:49Tama ba? Ganun ba yung pinapagawa sa
  605. 35:51inyo before?
  606. 35:58Sino nakaalala?
  607. 36:01You can you can you can also do the same
  608. 36:02ha? If that works for you, okay lang
  609. 36:05saakin ha. You can do the same.
  610. 36:08Ayun basta tandaan ha.
  611. 36:11How would you know this numbers?
  612. 36:15No, you have to look
  613. 36:18in your periodic table. Nasaang grupo
  614. 36:20sila ano t's makikita mo rin do
  615. 36:23nakalagay din yung ano oxidation state.
  616. 36:26Okay?
  617. 36:28Ayan. So yun yung mga clue ha. How to
  618. 36:32name them or write the chemical formula
  619. 36:34no properly.
  620. 36:41Okay. Ayan. So pinaliwanag lang niya.
  621. 36:44Okay. Sige nga. Okay. Write the chemical
  622. 36:48formula. Teka, sino ba yung nag-recite
  623. 36:50natin kanina?
  624. 36:56Okay. Ah ang sagot nila ay B. Unang
  625. 36:59nagsagot si Jillian Mercado. No. Okay.
  626. 37:04Bakit B? Teka.
  627. 37:08Yung yung calcium
  628. 37:10saang group ba siya bilong ba?
  629. 37:14Saang group belong ang calcium? Tingnan
  630. 37:16niyo nga sa periodic table niyo.
  631. 37:23Okay? Group 2 no? 2a yan. So ibig
  632. 37:27sabihin anong charge ng calcium?
  633. 37:33O anong charge ng calcium? 2 minus
  634. 37:37o two
  635. 37:392 plus
  636. 37:41metal yan eh. 'Di ba? Ibig sabihin may
  637. 37:43tendency siyang mag-give up no ng ah or
  638. 37:46mag-donate no ng electron. Ayan.
  639. 37:54Okay. What about sulfur? Saan siya
  640. 37:57belong na group?
  641. 38:01Six.
  642. 38:02Okay. Ilang electrons ang kulang niya
  643. 38:05para maobtain niya or makamit niya yung
  644. 38:08tinatawag na octet or eight electrons?
  645. 38:12O ilan dapat ang tanggapin niya no? So
  646. 38:14dapat dalawa. Pag tumanggap siya ng
  647. 38:16dalawa
  648. 38:172 minus.
  649. 38:19Okay. So, C
  650. 38:222+ S2-
  651. 38:27agina yung tinatawag na ano cris cross
  652. 38:30no? So you would have
  653. 38:33C2
  654. 38:35S2. Ang problema no,
  655. 38:39do we do we need to write two dito?
  656. 38:43Dapat bang ilagay natin 'tong two?
  657. 38:47Hindi 'di ba? Kasi
  658. 38:50ah it would cancel no. Pareho lang naman
  659. 38:53balance sila eh. Isa isa lang ang
  660. 38:55kailangan mo ba? Okay. So dapat C
  661. 39:01S yan.
  662. 39:04Okay. Calcium.
  663. 39:06sulfide. Okay. Ayan. So the answer is B.
  664. 39:12No. Ayan.
  665. 39:17Okay.
  666. 39:19Ayun. So teka. Yan.
  667. 39:24Okay. Naming compounds. No. Containing
  668. 39:27metals with multiple
  669. 39:29charges. Okay. Ito na.
  670. 39:31What if no? Hindi na alkali or alkaline
  671. 39:35earth metals ang ginagamit mo? What if
  672. 39:39gumagamit ka ng tinatawag na transition
  673. 39:43metal? Yun nga gaya ng sabi ko kanina
  674. 39:45ang transition metal ay may no magkaiba
  675. 39:50or pwedeng magkaroon ng multiple no
  676. 39:53charges. Ayan. For example, may copper
  677. 39:571 plus tapos may copper
  678. 40:012 plus no yan. May iron 2 plus, may iron
  679. 40:073 plus. No yan. So what if ganon no?
  680. 40:13Yan. To specify the cut ion charge in a
  681. 40:17compound, a Roman numeral. Teka,
  682. 40:21familiar ba kayo sa Roman numeral ' ba
  683. 40:24pag ganito?
  684. 40:26One,
  685. 40:29two,
  686. 40:31three
  687. 40:33ayan three
  688. 40:37oto four ito five 'di ba?
  689. 40:43Familyar ba? Familiar.
  690. 40:45Ayan ha. So ibig sabihin no sa
  691. 40:49pagpapangalan
  692. 40:51na maglalagay din po tayo yan kagaya ng
  693. 40:53ganito
  694. 40:56yan. Okay.
  695. 41:03When a metal forms only one cut ion,
  696. 41:07there is no need to use Roman numeral.
  697. 41:11Ayan. So balikan natin yung kanina no
  698. 41:13kasi kanina pakita ko sa inyo ha.
  699. 41:17Yan ba ito
  700. 41:21hindi ito yung choices no? Hindi sila
  701. 41:25yung choices.
  702. 41:28Okay? Bakit? Kasi si aluminum hindi
  703. 41:30naman siya transition metal. So there's
  704. 41:33no need for you to write Roman numeral
  705. 41:37no? So mali na agad sila.
  706. 41:41So yung dalawang possible answers mo no.
  707. 41:45Okay yung B sana at saka yung C however
  708. 41:48no dito kasi no ginawa niyang dialuminum
  709. 41:53trioxide no. Ayun.
  710. 41:58Okay.
  711. 42:00Ayan. So, balik tayo.
  712. 42:04Ayan. So, okay.
  713. 42:09Classical names, no? Rules for naming
  714. 42:11compounds involving metals that could
  715. 42:14form multiple charges. Ayan.
  716. 42:19First write the cut ion name.
  717. 42:23No, write the cut ion charge in Roman
  718. 42:26numerals in parenthesis.
  719. 42:28No, uh write the root of the anion and
  720. 42:33use IDE suffix. No exception. Okay. For
  721. 42:39metals that only form two cut ions, a
  722. 42:42lot root with either an OUS or IC suffix
  723. 42:47can also be used, no? So ang rules daw
  724. 42:51is kailangan siya ay
  725. 42:54no having Latin name. Dapat may Latin
  726. 42:58name daw siya or Latin roots, no?
  727. 43:01Example no.
  728. 43:04Um
  729. 43:06sa iron is
  730. 43:09no sa copper coprum
  731. 43:12ba sa lead plumb no so instead of ah
  732. 43:22ano ending no with um okay so it would
  733. 43:26end no in us or IC depende depende
  734. 43:33no okay on its
  735. 43:37charge no or oxidation state yan okay so
  736. 43:44for example class you have copper 1 plus
  737. 43:49so pag sinunod natin yung um using roman
  738. 43:53numerals in parenthesis
  739. 43:58ayan
  740. 44:01Okay.
  741. 44:05Now, if we use no uh classical name, no
  742. 44:09because it has Latin root eh okay, it
  743. 44:12would be cuprus.
  744. 44:16Okay? Basta cuprus yung mas mababa ha na
  745. 44:19charge.
  746. 44:23Tapos yung mas mataas no yung Cuprick.
  747. 44:26For example, copper 2 plus. So copper
  748. 44:31Roman numeral 2 and then another name is
  749. 44:36Cuprick.
  750. 44:39Ayan.
  751. 44:41Okay.
  752. 44:43Ayan. So ganun din sa iron. So we have
  753. 44:47ferus.
  754. 44:48We also have Feric. No tandaan class ha.
  755. 44:53yung mas mababa na number or oxidation
  756. 44:58no kung ito pos 2
  757. 45:00ito ah pos 3 no ayan
  758. 45:06so yung two yung gagamit ng us kasi siya
  759. 45:09yung mas mababa
  760. 45:11tapos yung three ang gagamit ng IC kasi
  761. 45:15siya yung mas mataas
  762. 45:18nasundan. Na-gets po ba guys?
  763. 45:21Okay. Ngayon uh
  764. 45:25sir, papaano namin malalaman? Alin ang
  765. 45:27mas mataas, alin ang mas mababa? Ah ito
  766. 45:32class
  767. 45:33kung ano 'yung mga charges na meron
  768. 45:35siya, you can look in your periodic
  769. 45:42table.
  770. 45:44Okay.
  771. 45:45So from there makikita mo na ah meron
  772. 45:48pala siyang
  773. 45:501 plus, meron pala siyang 2 plus, meron
  774. 45:53pala siyang 3 plus, no? Ayun. So pwede
  775. 45:56niyong malaman,
  776. 45:58okay? Kung ano yung mga charges na
  777. 46:00possible.
  778. 46:02Okay. So particularly isang part ng
  779. 46:04periodic table do mismo sa mga
  780. 46:05transition
  781. 46:08metals. Okay? Plus uh during the exam
  782. 46:13you have the liberty
  783. 46:16no the freedom
  784. 46:18to have your periodic table no. Ayun,
  785. 46:22your exam is 100 items.
  786. 46:26Uh, multiple choice. So, what you're
  787. 46:27allowed are the following no? Periodic
  788. 46:30table. Meron kayo dapat non.
  789. 46:33scientific calculator.
  790. 46:36Okay. And a stretch paper, no? A blank
  791. 46:40no bond paper given to you by your
  792. 46:43proctor ha. So uh we would provide we
  793. 46:48would provide
  794. 46:51okay
  795. 46:53formulas. Anong formulas? Wala pa naman
  796. 46:56tayong heavy na formula ah.
  797. 47:00You mean conversion factors?
  798. 47:05Uh we'll see if it is that complicated.
  799. 47:09Pero ag basic
  800. 47:12normally I don't provide eh kung basic
  801. 47:15lang na conversion e. Ibig sabihin it is
  802. 47:18meant for you to really know it eh ganon
  803. 47:22ha. Ayan I would tell I would tell kung
  804. 47:24anong mga formulas yung available or if
  805. 47:27you needed you needed those no'. Ayan.
  806. 47:29So during exam those are the things that
  807. 47:32you can have. Ayun periodic table,
  808. 47:36scientific calculator and scratch paper.
  809. 47:39No? Okay. Ayan. So
  810. 47:45okay ayan ha. So ito 'yung ano naming
  811. 47:47nila.
  812. 47:49Okay.
  813. 48:01Now, um, naming compounds containing
  814. 48:05metals with multiple charges. Ayan,
  815. 48:07example
  816. 48:10F or ion sulfide, no? Ayan.
  817. 48:15So,
  818. 48:17name the cut ion. recognized.
  819. 48:20Okay. Uh iron is a transition metal and
  820. 48:24can have more than one possible charge.
  821. 48:28So use the charge of nonmetal. So yung
  822. 48:31charge daw kasi nito,
  823. 48:34okay since um
  824. 48:36for this to become stable, it needs two
  825. 48:39additional electrons. So therefore, 2
  826. 48:43minus.
  827. 48:45Okay eh since ah sinulat natin siya F S
  828. 48:51wala kang nakikitang subscripts. So ibig
  829. 48:53sabihin no this iron would have
  830. 48:59no
  831. 49:012 plus.
  832. 49:03Okay? So kung 2 minus yung sulfur mo
  833. 49:06dapat 2 plus din yung ion. Hence
  834. 49:12okay it is iron.
  835. 49:15Open and close parenthesis 2 no? Ayan
  836. 49:18nakalagay
  837. 49:21pag iron 2 teka ferus or feric?
  838. 49:28Oh try nga kung naintindihan niyo
  839. 49:31kanina.
  840. 49:34If it is iron 2 plus is it ferus or
  841. 49:38feric?
  842. 49:41Okay. Ferus no? Bakit hindi feric?
  843. 49:45Okay. Kasi yung feric ginagamit natin
  844. 49:47for
  845. 49:503 plus no? Ayan.
  846. 49:57Okay. Then the name of the anion is
  847. 50:00sulfide. So ang pwedeng name niya is um
  848. 50:04ferus sulphide or iron 2 sulfide no?
  849. 50:09Teka tingnan nga natin yan iron 2
  850. 50:12sulfide.
  851. 50:13Ayan sige ito na. What about this one
  852. 50:17class?
  853. 50:20CRCL3.
  854. 50:24So the correct answer, sige count natin
  855. 50:27to.
  856. 50:29Ito.
  857. 50:32Ito no. So the correct answer is C.
  858. 50:36Bakit?
  859. 50:38O kasi yung CL mo, Cl is
  860. 50:43ah 1-us. Isa lang yung negative niya.
  861. 50:47But you have three, no? Tatlo yung
  862. 50:49nandito e. So pag ni-reverse mo iyung
  863. 50:51crease cross indicate it shows us that
  864. 50:54this chromium no is three positive no.
  865. 51:00Ayan. So ito yung pwedeng sagot no. Ang
  866. 51:05chrome ba may Latin? May Latin ah roots
  867. 51:10ba siya na? Parang wala no? Okay. Hindi
  868. 51:13siya kasama doun sa nabanggit. Ayan.
  869. 51:18Okay.
  870. 51:20Ayan.
  871. 51:22Ayan class. Pinakita lang ha. Ayan po
  872. 51:24yung ano.
  873. 51:26Okay. Papaano siya pinangalanan no?
  874. 51:30Ayan.
  875. 51:33What about this one? Yan.
  876. 51:38Copper one oxide. Um bakit copper one?
  877. 51:43No
  878. 51:45teka. Ayan.
  879. 51:47Kasi yung copper one uh states na yung
  880. 51:50charge niya is pos no or 1 plus. Ayan.
  881. 51:55So naging formula niya is ayan copper ah
  882. 52:00dalawa tapos
  883. 52:03oxygen. Ito po. Ayan. Okay.
  884. 52:10Oh,
  885. 52:14what about this one? Teka. Sinong nauna?
  886. 52:16Iba naman. Kawawa naman yung iba. So
  887. 52:18mahabol. Ito. Ayan. Damay na natin
  888. 52:21silaung mga nauna. Ito.
  889. 52:27Ayan. Okay.
  890. 52:29So the correct answer for this sige ah
  891. 52:34nakalagay dito 10.
  892. 52:36No.
  893. 52:39Y'yan na ba 'yung yan na ba 'yung
  894. 52:40pinakamataas 14? Stanic na ba 'yan or
  895. 52:44Stanus?
  896. 52:46Ayan.
  897. 52:48O ano kaya yung tin diyan? Stanic or
  898. 52:50Stanus? Sige nga try nga.
  899. 52:54Tama ba? SN ' ba? Stanic or Stanus?
  900. 53:02Ah Stanic na. Okay. Oh yan.
  901. 53:08Okay. So
  902. 53:11ibig sabihin yung SN dito ano yung SN is
  903. 53:164
  904. 53:18plus.
  905. 53:21Therefore, ang fluoride kasi ay
  906. 53:24kamag-anak ni chlorine 'di ba? Ni
  907. 53:27chloride. Ayan. Magkamag-anak sila. So
  908. 53:30therefore,
  909. 53:31ah one minus naman ito. So kakailanganin
  910. 53:34mo ng apat. No, kung ang CL mo ay sorry
  911. 53:37CL tuloy
  912. 53:39yan na naman tayo. Lutang na naman tayo.
  913. 53:42Sorry. Okay. [sumisingasing]
  914. 53:45Minus no? Teka tingnan nga natin
  915. 53:49yan. So apat ang kakailanganin mo. Ayan
  916. 53:53para mag-match sila. Okay. Ayan.
  917. 53:57So pinaliwanag lang niya. Yan. You need
  918. 53:59four ah fluoride no
  919. 54:04or florine
  920. 54:06yan to match ah yung tin
  921. 54:12no na charge.
  922. 54:15Ayan
  923. 54:18rules for naming molecular compounds. So
  924. 54:21how do we name molecular compounds? No
  925. 54:24write the name of the first element
  926. 54:26including the appropriate prefix. So ito
  927. 54:29gagamit na tayo ng ano um
  928. 54:33mga molecular compounds no.
  929. 54:36Ayan
  930. 54:38for the second element including the
  931. 54:40appropriate
  932. 54:42prefix and ending in IDE. No sige nga
  933. 54:47try natin ito.
  934. 54:50So based on their number pwede daw
  935. 54:53gumamit ng mono if there's one di tri
  936. 54:57tetra penta, hexa hepta octaona deca.
  937. 55:02No'no. Ayan. These are the prefixs
  938. 55:06that you can use 'no? Based on the
  939. 55:08number of atoms. Okay.
  940. 55:12Sige nga try natin ito. Naku, na-reveal
  941. 55:15ko.
  942. 55:17Ayan.
  943. 55:19Okay. Sige. So since you have two o how
  944. 55:24how would you call this?
  945. 55:28Oh, dalawa yung kanyang phosphorus.
  946. 55:31Sige nga. Anong pangalan?
  947. 55:40Oh,
  948. 55:43use the ano? Use the prefix.
  949. 55:47Okay, correct no. Ayan. Sige na nga. Si
  950. 55:50si Miss Celesti no Magsino yung unang
  951. 55:52nakasagot. Ayan
  952. 55:54die phosporus
  953. 55:59penta kasi five eh. pento pentoxide no
  954. 56:04okay
  955. 56:06tama di
  956. 56:09phosphorus kasi dalawa yung phosphate
  957. 56:14ba
  958. 56:16pentoxide
  959. 56:18bakit kasi meron silang limang oxygen
  960. 56:24no
  961. 56:26diposporus pentoxide
  962. 56:32Okay. Ganito
  963. 56:35' ba dapat penta
  964. 56:39teka
  965. 56:41penta kasi dapat 'di ba? Pero bakit
  966. 56:44kinancel yung a no? Kasi hindi naman
  967. 56:47magandang pakinggan ' ba? Pentaoxide.
  968. 56:51So ginawa na lang pentoxide no. Ayan.
  969. 56:56So the O or A in mono and penta
  970. 57:02is usually dropped no tinatanggal hindi
  971. 57:06na sinasama
  972. 57:08if there are
  973. 57:10two vowels next to each other no ayun
  974. 57:15tandaan ha okay
  975. 57:18Yan.
  976. 57:26Okay. Ano 'to? Ayan.
  977. 57:30Ba't parang typo 'to?
  978. 57:36Ah okay. Ayun. Sige move na nga natin.
  979. 57:43Ayan. Can you please name? Okay. Ito
  980. 57:48anong name niyo dito?
  981. 57:53Letter A. Okay.
  982. 58:03Ayan. Okay. Okay. Namamatay-matay yung
  983. 58:06ano ko headset ko. Ayan. Okay. So bakit
  984. 58:09A no'? Ilan ba yung sulfur natin no'?
  985. 58:15Ayan isa no? Okay. Ta's yung oxygen
  986. 58:18natin dalawa.
  987. 58:20Sure ba kayo A talaga? Hindi ito?
  988. 58:26Hindi B. Sige try natin. So the answer
  989. 58:29is A. Ayan.
  990. 58:33Okay. So, sulfur indicates no yung
  991. 58:37sulfur kasi na word mismo, no? It
  992. 58:40indicates one atom of sulfure. Then
  993. 58:43dioxide you have two uh atoms of oxygen,
  994. 58:47no?
  995. 58:49Yan. O sige try natin ito pa para
  996. 58:51mabilis tayo.
  997. 58:54Oh, anong sagot niyo?
  998. 58:56Oh sinong nauna? Lagi na lang sila
  999. 58:58nauuna. Naka-ready na.
  1000. 59:02Iba naman.
  1001. 59:03Ayan.
  1002. 59:08Okay. O sige. Ayan. Teka ka yung mga
  1003. 59:13nauna. Syempre magalit yang mga yan.
  1004. 59:22Okay na. Ayan na. O sige. Umm.
  1005. 59:26Bakit ang sagot natin ay C? Okay clarify
  1006. 59:31natin. Ilang nitrogen? Dalawa. So ibig
  1007. 59:36sabihin kung mag-e-elimination tayo sa
  1008. 59:39choices po natin, hindi na po kasali si
  1009. 59:41A, hindi na kasali si D.
  1010. 59:47Ayun. Plus ha, kahit sa mga board exam,
  1011. 59:50you also do that ha. magage-elimination
  1012. 59:52ka para tumaas iyung chances mo of
  1013. 59:55getting the correct answer. Okay? Bakit
  1014. 59:59hindi pwede
  1015. 1:00:02si B? No, tignan niyo yung oxide. Ayan.
  1016. 1:00:09Hindi siya nagma-match up. Okay? Kasi
  1017. 1:00:14meron kang five ba?
  1018. 1:00:18Okay. So ang appropriate name would be C
  1019. 1:00:24kasi dinitrogen
  1020. 1:00:27pentoxide pento
  1021. 1:00:305 ba? Okay.
  1022. 1:00:35Ayan. So the correct answer is C.
  1023. 1:00:38Opo.
  1024. 1:00:45Ayan. Okay. Now, binary acids. O,
  1025. 1:00:50magpangalan na rin tayo ng binary acids.
  1026. 1:00:51Teka, ano na ba yung mga napangalan
  1027. 1:00:53natin? Teka nga.
  1028. 1:00:56Ay, sige, mamaya na.
  1029. 1:00:58Okay. Binary acids. Certain binary
  1030. 1:01:01compounds containing hydrogen behaves no
  1031. 1:01:06as acid no in water and have special
  1032. 1:01:09names. Okay. Ayan. So HCL
  1033. 1:01:16no
  1034. 1:01:18hydrogen
  1035. 1:01:21chloride
  1036. 1:01:23in aquous form hydroric
  1037. 1:01:27acid.
  1038. 1:01:29By the way class, yung ibig sabihin ng G
  1039. 1:01:31dito hindi grams ha.
  1040. 1:01:33It means
  1041. 1:01:36gas.
  1042. 1:01:38Yung AQ
  1043. 1:01:42aquus no?
  1044. 1:01:44Ayan.
  1045. 1:01:47Okay po ba?
  1046. 1:01:54Okay. Uh hydrogen is always written
  1047. 1:01:57first in an acid formula. No.
  1048. 1:02:04Okay. Indicates the compound is an acid.
  1049. 1:02:09No tigan niyo. Versus ito NH3.
  1050. 1:02:14Okay. Itong CH. 4. Napansin niyo no? Ah,
  1051. 1:02:19pwede namang isulat na nasa unahan yung
  1052. 1:02:22hydrogen. However, no ah to avoid
  1053. 1:02:26confusion we first write hydrogen sa
  1054. 1:02:29simula, no? Kapagka siya ay acid.
  1055. 1:02:34Okay. Pero ito kasing mga to, these are
  1056. 1:02:37non acids, no? Yan. Ammonia and ano ano
  1057. 1:02:43to methane, no?
  1058. 1:02:46Ayan.
  1059. 1:02:51So rules for naming binary acid,
  1060. 1:02:55write the prefix hydro.
  1061. 1:02:58Okay. Then follow the root of the second
  1062. 1:03:02element with IC.
  1063. 1:03:05So napansin niyo hydro
  1064. 1:03:08chloric
  1065. 1:03:10may IC tapos yung hydro.
  1066. 1:03:15Ayun. Ay plus wait lang ha. Yung pusa ko
  1067. 1:03:17kasi kinukulit ako. Teka.
  1068. 1:03:22Ayan okay na.
  1069. 1:03:24Kanina pa yang mingming na yan eh.
  1070. 1:03:27Okay.
  1071. 1:03:28[nagbubuntong-hininga][sumisinghap]
  1072. 1:03:29Ayun. So
  1073. 1:03:32nasundan ba class? Nasundan. Pa-thumbs
  1074. 1:03:34up naman kung nasundan ha. Pag acid daw
  1075. 1:03:38saan daw dapat nagsisimula ang
  1076. 1:03:41name no with the prefix hydro and ends
  1077. 1:03:46iyung second iyung second element ends
  1078. 1:03:48with IC. No teka may iba pa bang
  1079. 1:03:51example?
  1080. 1:03:53Okay. And then add the word. Ayan na
  1081. 1:03:55'yung panghuli. Mag-a-add daw tayo ng
  1082. 1:03:58word na acid.
  1083. 1:04:00So para ma-specify talaga na siya ay
  1084. 1:04:02isang acid. Okay?
  1085. 1:04:07Ayan. So for example, hydro
  1086. 1:04:10yan sulfuric
  1087. 1:04:14acid.
  1088. 1:04:15Okay.
  1089. 1:04:18Hydrosulphuric acid.
  1090. 1:04:21HI. Sige nga kayo nga.
  1091. 1:04:24Hi, can you name HI no?
  1092. 1:04:30Okay, correct. Hydroiodic
  1093. 1:04:33acid. Mga mamaya pag sa exam ha
  1094. 1:04:34nakalagay hi biglang may mag-reply ano,
  1095. 1:04:38hello.
  1096. 1:04:41[sumisinghap]
  1097. 1:04:42Okay.
  1098. 1:04:44Ang sasagot ng hello ah aawayin ko ha.
  1099. 1:04:48[tawanan]
  1100. 1:04:49Baka mamaya hi kaya to. Hi.
  1101. 1:04:54Okay. No, hindi hydroiodic
  1102. 1:04:57acid. Tama ba? Ayun. Tama no. Bakit
  1103. 1:05:01iodic no? Kasi hydro. Ayan.
  1104. 1:05:05Iodine no. Ito iodic.
  1105. 1:05:10Okay.
  1106. 1:05:12Acid. Hi. No, hydroiodic acid. Plus
  1107. 1:05:19clue. Sa exam po ba maraming naming?
  1108. 1:05:23Short answer, yes. Marami no? Sa prelims
  1109. 1:05:29marami.
  1110. 1:05:32May computation ba? Meron din syempre
  1111. 1:05:35no? May naming? Meron. Marami. Okay.
  1112. 1:05:39What about sa love part? Sa love part
  1113. 1:05:41kasi hopefully makapag-love na talaga
  1114. 1:05:44tayo ha sa next Saturday bago yung week
  1115. 1:05:47ng exam no. more of uh familiarization
  1116. 1:05:51nung ano nung
  1117. 1:05:53materials instruments. Ano yung
  1118. 1:05:56ginagamit to measure mass? Ano yung
  1119. 1:05:58ginagamit to measure volume? No ayon.
  1120. 1:06:03Okay.
  1121. 1:06:07Ayan. So
  1122. 1:06:10hydrocyenic.
  1123. 1:06:11Ayan. Ito
  1124. 1:06:14acid.
  1125. 1:06:16Okay. And HF. So hydrofluoric
  1126. 1:06:20acid yan HF.
  1127. 1:06:26Okay. Ah review of binary compound
  1128. 1:06:29naming no molecular.
  1129. 1:06:32So sabi dito
  1130. 1:06:34binary compounds usually end in IDE.
  1131. 1:06:38Okay.
  1132. 1:06:40Molecular two nonmetals
  1133. 1:06:43uses prefix to name both elements. Ayan.
  1134. 1:06:50So binary compounds usually end in IDE.
  1135. 1:06:53Yan.
  1136. 1:06:57Okay. Ionic. Ionic is metal and
  1137. 1:07:00nonmetal. No so parang ano lang to
  1138. 1:07:02summarization lang no itong part na to
  1139. 1:07:05ng slides.
  1140. 1:07:07Ayan.
  1141. 1:07:15Okay. Paano kung acid yan pinapaliwanag
  1142. 1:07:18dito no? Ayan teka.
  1143. 1:07:22If it is uh molecular or also known as
  1144. 1:07:26covalent
  1145. 1:07:30yan.
  1146. 1:07:33Ito daw yung rules, you know. Okay.
  1147. 1:07:37Then what if it is ionic? No, ito daw
  1148. 1:07:39yung rules, no? Sa ionic ah you have to
  1149. 1:07:43consider ha yung sa ionic kasi may
  1150. 1:07:45transition metals tayo, no? At saka may
  1151. 1:07:48alkal alkaline metals at saka alkaline
  1152. 1:07:50earth metals no? Yung group 1A and group
  1153. 1:07:532A, no? Yan. You also have to consider
  1154. 1:07:56that ha. Yan. Sa ionic ito. Sa acids ito
  1155. 1:08:01no?
  1156. 1:08:07Oh sige nga. Ito nga oh.
  1157. 1:08:11O mabilisan na lang.
  1158. 1:08:14Okay. Letter C. Okay. Bakit? Ah yung
  1159. 1:08:20copper mismo, ano? Teka. Tama ba? Yung
  1160. 1:08:24copper mismo ay isang transition metal.
  1161. 1:08:28Okay yun yung isa. So dapat gagamit ka
  1162. 1:08:31ng Roman numeral. Another name for this
  1163. 1:08:35kung hindi copper to
  1164. 1:08:38no pwedeng cuprus
  1165. 1:08:41yan. Bakit? Kasi mas mababa no yung two
  1166. 1:08:44compare sa three no.
  1167. 1:08:47Ayan.
  1168. 1:08:50Okay
  1169. 1:08:52ayan. What about this one?
  1170. 1:08:57Okay. Ayan. Sige. So ang sagot natin is
  1171. 1:09:00D no tricarbon din
  1172. 1:09:04yan. Para mabilis na tayo.
  1173. 1:09:08Okay. What about this one?
  1174. 1:09:13So
  1175. 1:09:16ayan. Teka, ango din ba ay
  1176. 1:09:19ang ayo din ba ay isang uri ng
  1177. 1:09:22transition metal? Hindi. So ibig sabihin
  1178. 1:09:25ito ay
  1179. 1:09:27cancel na no?
  1180. 1:09:31Ayan. So hindi siya pwedeng kasali.
  1181. 1:09:34Anan. Sige na nga. Ayan. So the answer
  1182. 1:09:36should be ano bang sagot nila? A no?
  1183. 1:09:41Iodine trioridean.
  1184. 1:09:48Okay. Now, another
  1185. 1:09:54o anong tamang pangalan ng acid na to?
  1186. 1:09:59Okay. C no hydro chloric acid kasi ' ba
  1187. 1:10:06hydro.
  1188. 1:10:08Tapos you would notice the choices. Wala
  1189. 1:10:11namang nakalagay na word na acid dito.
  1190. 1:10:13So eliminated na to.
  1191. 1:10:15O rin wala rin. So eliminated na to. Na
  1192. 1:10:18siya kasali sa choices.
  1193. 1:10:21Now dalawa na lang ang option natin.
  1194. 1:10:25Since ang ruling starts with hydro, ends
  1195. 1:10:29with IC, ito ends with Ous. Hindi na
  1196. 1:10:33siya kasali. So ito yung tamang sagot
  1197. 1:10:36no. Ayan.
  1198. 1:10:38So C no.
  1199. 1:10:42Okay.
  1200. 1:10:45Ayan.
  1201. 1:10:46What about this one? Polyatomic ions no?
  1202. 1:10:50Ayan. So meron tayong tinatawag na
  1203. 1:10:52polyatomic ions ha. So yung mga ions
  1204. 1:10:54hindi lang siya laging single atom
  1205. 1:10:59no or single ion. No yan. We can have
  1206. 1:11:02polyatomic ions. An ion that contains
  1207. 1:11:06two or more elements. No'no. Halimbawa
  1208. 1:11:10cyanide
  1209. 1:11:12an ion. No, ito CN-
  1210. 1:11:17yan.
  1211. 1:11:20Naming compounds containing polyatomic
  1212. 1:11:24ions is similar
  1213. 1:11:26to that of for binary compounds. No
  1214. 1:11:29ayan.
  1215. 1:11:31Yan. So cut ion is named followed by the
  1216. 1:11:35anon. The names, formulas and charges of
  1217. 1:11:40common polyatomic ions should be
  1218. 1:11:42learned. No rules for naming. Name the
  1219. 1:11:45cut ion then name the anion. No? Ayan.
  1220. 1:11:48So sige nga try natin.
  1221. 1:11:52[nililinis ang lalamunan]
  1222. 1:11:53Ayan. Ito 'yung mga polyatomic ions.
  1223. 1:11:57'Yan. Acetate, ito. Ammonium,
  1224. 1:12:01hydrogen, carbonate.
  1225. 1:12:04Ayan.
  1226. 1:12:05And so on, no? Yan yung iba't ibang
  1227. 1:12:10um
  1228. 1:12:11what you call this? Polyatomic
  1229. 1:12:14ions and they're different.
  1230. 1:12:17charges. Ayan, nandiyan na po.
  1231. 1:12:20Naka-table na no.
  1232. 1:12:23Okay.
  1233. 1:12:34Ayan. Mmm.
  1234. 1:12:39Um okay oxy and ions no polyatomic ions
  1235. 1:12:44that contain oxygen often ends no ah in
  1236. 1:12:50the suffix
  1237. 1:12:52at a 8 or it no okay sino-sino ba ong
  1238. 1:12:59mga to no okay at a compounds contain
  1239. 1:13:06more oxygen atoms than IT. So kanina '
  1240. 1:13:10ba meron tayong ferus at saka feric.
  1241. 1:13:13Ferus kapag mas mababa yung yung Oag mas
  1242. 1:13:17mababa yung ano ah oxidation.
  1243. 1:13:21IC kapag mas mataas. Ito naman based on
  1244. 1:13:24the number of oxygen. Kapag mas maraming
  1245. 1:13:27oxygen at a.
  1246. 1:13:30mas mababa yung oxygen it yung kanyang
  1247. 1:13:33ending no.
  1248. 1:13:36Ayan.
  1249. 1:13:39Okay. For elements that form multiple
  1250. 1:13:43ions with oxygen, okay, prefixes are
  1251. 1:13:47also added
  1252. 1:13:50per okay adds one oxygen
  1253. 1:13:55to the AT root no and then hypo
  1254. 1:14:00subtracts one oxygen from IT root. Okay.
  1255. 1:14:05Teka nga balikan natin 'tong ano table
  1256. 1:14:07dito.
  1257. 1:14:09Ayan.
  1258. 1:14:11Sige tingnan natin to. Class
  1259. 1:14:14sulfate.
  1260. 1:14:16Sulpe.
  1261. 1:14:18Sulfate ends in AT.
  1262. 1:14:22Sulpite
  1263. 1:14:25tingan niyo yung number nung ano. Tingan
  1264. 1:14:26niyo yung number ng oxygen nila.
  1265. 1:14:304
  1266. 1:14:32and then 3
  1267. 1:14:35ba
  1268. 1:14:37ayan so
  1269. 1:14:39mas mababa yung 3
  1270. 1:14:42kaya sa four hence siya yung sulfit ito
  1271. 1:14:46yung sulfat
  1272. 1:14:49nitrate.
  1273. 1:14:51Nitri.
  1274. 1:14:53Nakita.
  1275. 1:14:54Okay. Tatlo. Mas mataas to kaya ate.
  1276. 1:14:59Dalawa lang kaya no?
  1277. 1:15:04Ayan.
  1278. 1:15:08Paano yung mga walang variant or mas
  1279. 1:15:10mababa sa kanila? No, they have ATE.
  1280. 1:15:14Ayan.
  1281. 1:15:16Example chromate, carbonate, chlorate,
  1282. 1:15:19chromate no. Ayan.
  1283. 1:15:29Okay. Sige nga. Try. Ayan.
  1284. 1:15:36Okay. Ito no. So meron kang ah
  1285. 1:15:41ayan.
  1286. 1:15:42Paano kung ah apat no na
  1287. 1:15:47variation. Ayan. Halimbawa no kung
  1288. 1:15:50walang um ito yung ah dalawa kanina.
  1289. 1:15:55Kung nagbawas daw ng isa. Okay ang sabi
  1290. 1:15:58kanina ' ba kung nagbawas daw tayo ng
  1291. 1:15:59isa. Ito yung ah base natin.
  1292. 1:16:04Nagbawas tayo ng isang oxygen.
  1293. 1:16:07Okay two yung original na nandito sa
  1294. 1:16:10ITE. naging isa na lang ' ba? Ayan. So
  1295. 1:16:13maglalagay daw ng word na hypo hypo
  1296. 1:16:19chlorite.
  1297. 1:16:21Okay.
  1298. 1:16:23Paano kung nagdagdag ng isa? No instead
  1299. 1:16:26of three we have four. No? So maglalagay
  1300. 1:16:30daw ng word na per
  1301. 1:16:34chlorate.
  1302. 1:16:36Yan chlorate yung sinunod no?
  1303. 1:16:42Na-gets niyo class nasundan? Okay. Ayan.
  1304. 1:16:46So ang dami namang ime-memorize. Okay.
  1305. 1:16:49[tawanan]
  1306. 1:16:51Ano ganun talaga ano? Ayan yan yung
  1307. 1:16:53ruling nila sa pagpapangalan no.
  1308. 1:16:57So hypochlorite.
  1309. 1:16:59Ayan. And then per chlorate. High po
  1310. 1:17:03kapagka nagbawas tayo ng isa from
  1311. 1:17:06chlorite
  1312. 1:17:08no. And then ah
  1313. 1:17:10per kapagka nagdagdag tayo ng nagdagdag
  1314. 1:17:13tayo ng isa no from chlorate.
  1315. 1:17:16Yan. Ito pa yung iba example no.
  1316. 1:17:22Okay. Paano kung ano kung ah acid no?
  1317. 1:17:27Ayan hindi na siya oxyan ions oxy acids
  1318. 1:17:30na siya. Okay.
  1319. 1:17:33So
  1320. 1:17:34chlorus acid ito
  1321. 1:17:38nagtanggal tayo ng oxygen may word na
  1322. 1:17:40hypo
  1323. 1:17:42hypochlorus acid.
  1324. 1:17:45nagdagdag ng isang oxygen, we have per
  1325. 1:17:49chloric acid, no?
  1326. 1:17:55Ayan.
  1327. 1:18:02Okay. Ah
  1328. 1:18:05wala pa nga mer.
  1329. 1:18:10Ayan. Okay. Okay. So anong sagot niyo?
  1330. 1:18:12Um,
  1331. 1:18:14sodium
  1332. 1:18:15nitrate. Okay. Bakit hindi nitri?
  1333. 1:18:19O kasi ano iyung nitrite is
  1334. 1:18:22um no ano iyung nitri?
  1335. 1:18:26Ah ba't ba't nitrate? Ba't hindi
  1336. 1:18:28nitrite?
  1337. 1:18:34O tapos bakit mali ito yung a no? Kasi
  1338. 1:18:39ah ito mismo ano it's a polyatomic
  1339. 1:18:43umm
  1340. 1:18:45ah yun no. So hindi natin ah pwedeng
  1341. 1:18:48gamitin to no yung may trioxide
  1342. 1:18:52tapos ah hindi rin siya pwedeng gamitin
  1343. 1:18:55na per nitrate no walang ganong ruling
  1344. 1:18:59no
  1345. 1:19:02okay
  1346. 1:19:05what about this one plus para matapos na
  1347. 1:19:08tayo d okay potassium cyanide no kasi
  1348. 1:19:13ito ito ito ito ay cyanide No? Tapos ang
  1349. 1:19:16charge nito is ano yung CN 'di ba?
  1350. 1:19:21Is ah 1-us.
  1351. 1:19:28O ito na. Umm
  1352. 1:19:33o anong sagot niyo?
  1353. 1:19:37A
  1354. 1:19:39lithium chloride no?
  1355. 1:19:44Ba't hindi hypo no? Kasi clo
  1356. 1:19:48kung siya chlorate.
  1357. 1:19:50Ayan
  1358. 1:19:53kung kung mababa pa diyan doon tayo
  1359. 1:19:55magkakaroon ng lithium hypochlorite.
  1360. 1:20:00Okay ayan.
  1361. 1:20:03So ano to? Ammonium
  1362. 1:20:06iodide no? Hindi pwede yung may Roman
  1363. 1:20:09numeral kasi hindi naman ah transition
  1364. 1:20:12metal si ammonium no. Ayan.
  1365. 1:20:17more complicated polyatomic
  1366. 1:20:20ions. Ayan na.
  1367. 1:20:23Meo mas komplikada daw. Okay. Inorganic
  1368. 1:20:26ions can be formed no from more than
  1369. 1:20:29three elements. The same method is used
  1370. 1:20:32as before. Yan. Prefix can be used.
  1371. 1:20:37Prepix by no can be used instead of
  1372. 1:20:40hydrogen.
  1373. 1:20:42So example is sodium bicarbonate.
  1374. 1:20:45So may may bicarbonate na tayo. Okay.
  1375. 1:20:51Ayan.
  1376. 1:20:55Okay. Sige. So ito daw no. Ayan,
  1377. 1:21:05sodium bicarbonate.
  1378. 1:21:07Okay. Ayan na. Sige, mag-name na tayo.
  1379. 1:21:13O, sige nga.
  1380. 1:21:19potassium tapos may aluminum
  1381. 1:21:23tapos may
  1382. 1:21:25SO4
  1383. 1:21:26na naka-open and close parenthesis.
  1384. 1:21:30Anong sagot niyo? A potassium aluminum
  1385. 1:21:36sulfate. Teka. Tama ba? Potassium 'to.
  1386. 1:21:40Aluminum. 'Yung nasa loob po ay sulfate.
  1387. 1:21:44Okay.
  1388. 1:21:46Okay. Tama 'no? Potassium aluminium
  1389. 1:21:48sulfate.
  1390. 1:21:50Ah hindi pwede 'yung aluminum 3 Roman
  1391. 1:21:53numeral 'no. Bawal 'to. Hindi siya
  1392. 1:21:55transition metal. Ah hindi pwede 'yung B
  1393. 1:21:58kasi nilagay niya sulfite.
  1394. 1:22:02Tapos hindi tayo nagda-disulfate
  1395. 1:22:06no. Ngayon kasi ano na siya eh
  1396. 1:22:09polyatomic na siya no.
  1397. 1:22:17What about this?
  1398. 1:22:19Oh, naka-open and close parenthesis. Ha?
  1399. 1:22:25Okay.
  1400. 1:22:27Ah, tama ba? Sulfite ba 'to? Tingnan nga
  1401. 1:22:30natin.
  1402. 1:22:32SO4 ' ba? SO4 fate. SO3
  1403. 1:22:37fight ' ba? Okay. So, tama. Calcium,
  1404. 1:22:41hydrogen, sulfite.
  1405. 1:22:45Okay. Bakit hindi per sulfate? Kasi
  1406. 1:22:48hindi naman mas mataas pa no. Ayan.
  1407. 1:22:51Bakit hindi hypo? Hindi naman tayo
  1408. 1:22:53nagbawas na mas mababa sa three no.
  1409. 1:22:56Ayan.
  1410. 1:23:00Okay.
  1411. 1:23:02Naming oxy acids. Ayan. Hydrogen first.
  1412. 1:23:10Okay.
  1413. 1:23:13ATE ions are changed to IC. IT ions are
  1414. 1:23:17changed to OUS. Ayan.
  1415. 1:23:21Yan practice pa ulit no. H2SO4
  1416. 1:23:28anong sagot niyo?
  1417. 1:23:31Basic ito eh. Sulfuric acid ba?
  1418. 1:23:37Common acid. Ayan. Bakit hindi sulfurus?
  1419. 1:23:42Sulfurious no? Acid no? Ayan. Kasi yung
  1420. 1:23:46SO4
  1421. 1:23:48ayan.
  1422. 1:23:52Okay. Derive from sulfate and ion
  1423. 1:23:56change with IC. No, binago kasi ginawang
  1424. 1:23:59acid na siya. Ayan.
  1425. 1:24:02Ito anong sagot ng klase? Sige nga. A
  1426. 1:24:07no? Nitrus.
  1427. 1:24:09Ba't hindi nitric?
  1428. 1:24:11No, kasi dalawa lang yung oxygen niya
  1429. 1:24:14no. Kaya nitrus.
  1430. 1:24:17Ayan. Nitrus.
  1431. 1:24:21From IT binago ginawang OUS kung ATE
  1432. 1:24:26gagawin siyang IC pero kung IT gagawing
  1433. 1:24:29US no?
  1434. 1:24:34Ayan ito yung ginawa natin kanina.
  1435. 1:24:43Okay. Ayun na. Tapos na class. Ito na
  1436. 1:24:46yung lahat ng ginawa natin. Learning
  1437. 1:24:48objectives. Nagpangalan tayo. Common
  1438. 1:24:50versus systematic
  1439. 1:24:52elements and ions write formulas
  1440. 1:24:57no from names of ionic compounds.
  1441. 1:25:016.4. Naming binary compounds and acids.
  1442. 1:25:05Yan. Copyright. Okay.
  1443. 1:25:09Okay. Question so far class.

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