Chemistry Lecture 6 For General Chemistry and InOrganic Chemistry — Transcript
Full transcript
- 0:01Okay class. Uh I'm recording this
- 0:03session. This one is chapter 6
- 0:07nomenclature of inorganic compounds.
- 0:11Okay.
- 0:16So why why is there a need no to name no
- 0:21inorganic compounds?
- 0:24So ibig sabihin no um itong chapter na
- 0:27ito is dedicated no not for organic no
- 0:30but for those who don't have no long
- 0:34chains of hydrocarbons. example
- 0:37no um we have here
- 0:41okay uh this
- 0:44se shells no yan which are formed
- 0:48with calcium carbonate no so calcium
- 0:51carbonate yung main compound niya and
- 0:53this is the chemical formula no
- 0:57it is also known as limestone
- 1:02yung um common name niya No. Okay. Uh
- 1:07this compound is also used in many
- 1:10dietary supplement, no? So ginagamit din
- 1:13siya for um
- 1:16calcium supplement.
- 1:18Okay? Ayun. However, no, if you don't
- 1:21need calcium supplement, don't take it
- 1:24ha because there are studies no linking
- 1:27um
- 1:29consumption of calcium supplements to
- 1:32what you call this calcified arteries no
- 1:35may mga ganong studies kasi. Ayan.
- 1:39Okay, sige move tayo. Now, this is the
- 1:42chapter outline. Okay, of course we talk
- 1:45about common and systematic names,
- 1:48elements and ions. Writing formulas from
- 1:51names of ionic compounds.
- 1:54No, binary compounds. Naming compounds
- 1:58containing polyatomic ions.
- 2:02Okay. Acids, binary acids, no. Ayan,
- 2:06chemical nomenclature, no.
- 2:08Yan. So ito yung ito yung ating outline
- 2:10class.
- 2:12Okay.
- 2:14So 6.1. This is the first part of this
- 2:17chapter no chemical nomenclature
- 2:22is the systematic naming of chemical
- 2:25compounds.
- 2:27Okay? So ito iyung goal natin to learn
- 2:30no? Chemical nomenclature.
- 2:33Then there are common names
- 2:36no are arbitrary names that are not
- 2:40based on chemical composition of the
- 2:43compound. No. Sige nga class, can you
- 2:46give me a example of common name?
- 2:51Halimbawa ito class
- 2:54na A CL.
- 2:58What's the common name for this?
- 3:04Pag nakita niyo 'tong ano na 'to ah
- 3:06compound na 'to, what's the common name?
- 3:09Sige nga pa-chat nga ng common name
- 3:11'yan.
- 3:12Ayun. Basically
- 3:14salt no. Ito to tamang sagot.
- 3:18Pag nakakita kayo ng ano ng compound
- 3:20sinabi NaCl matic ang sinasabi ninyo '
- 3:24ba salt. However, sa chemistry hindi
- 3:29lang naman ito ang salt no.
- 3:34Ayun. So magnesium chloride is also a
- 3:36salt no. Ayun. and others no? Ah
- 3:40potassium chloride is also a salt no. So
- 3:44pero siya yung sikat no ah
- 3:48named no salt o ano yung kanyang ano ah
- 3:53scientific or chemical nomenclature?
- 3:57How would you call this? Ito to to
- 4:01o ito yung kanyang common common name
- 4:03'di ba?
- 4:04Okay. What about uh chemical
- 4:07nomenclature?
- 4:12Ayan no. So we call this
- 4:15sodium chloride. Ayan no. Okay.
- 4:22Ayan.
- 4:24So magkaiba no yung chemical and common
- 4:27name. Noan.
- 4:31Okay. Example no
- 4:34nitrus oxide
- 4:38common name ising
- 4:41gas.
- 4:42Okay. Ayan.
- 4:47Okay. Ito pa. Teka. Ito pala yung ano
- 4:49kanyang ano systematic name.
- 4:52Dinitrogen monoxide. No? Okay.
- 5:00Yan. Common names reveal nating uh but
- 5:04physical and chemical property of a
- 5:08compound. Noan.
- 5:14Okay yan example no common names are
- 5:18often used because systematic names are
- 5:21too long and technical for everyday use.
- 5:25Okay? Okay. Calcium oxide ito. So common
- 5:29name is line.
- 5:32Then we have calcium oxide.
- 5:41Okay. Um,
- 5:43most chemist no prefer systematic names
- 5:47that precisely identify the chemical
- 5:49composition of a compound. No'no? So
- 5:54okay 'yung common name it won't tell you
- 5:57no how many uh elements of this
- 6:00particular atom is included no but
- 6:03systematic name would tell us how many
- 6:07no um
- 6:09what you call this atoms no of an
- 6:13element is included. Ayan. So for
- 6:16example,
- 6:18calcium oxide. Okay. Since isa lang
- 6:21naman yung calcium, ito siya.
- 6:25Isa lang din yung umxygen.
- 6:29O ano. So this uh systematic name, okay
- 6:34tells us yan yung ano composition niya,
- 6:37no? Okay. The common name is uh lime. No
- 6:42ayan. So ah with this name you won't
- 6:46know ilan iyung calcium, ilan iyung
- 6:49oxygen no?
- 6:52Ayan. Now the system of nomenclature was
- 6:55devised no by the international union of
- 6:59pure and applied chemistry. So yung
- 7:01tinatawag na ano ah ayupacak no pag
- 7:06inabbreviate natin siya.
- 7:11Ayan.
- 7:12Ito yun. Ito yung ibig sabihin niya ha.
- 7:18Okay.
- 7:22Okay. Now, nomenclature of inorganic
- 7:25compounds. No, number of elements
- 7:28present.
- 7:29If there is
- 7:31only one element
- 7:35present, it is classified as element.
- 7:43If there are two no elements, so we have
- 7:46a binary compounds. Three or more we
- 7:50have a polyatomic
- 7:52compound no yan. So isang element lang
- 7:56element.
- 7:58Two elements, no? Okay. We have a
- 8:01binary. And then polyatomic compounds if
- 8:05we have three, no? Yan.
- 8:18Okay. The formula for most elements
- 8:23is a symbol of the element, no? Ayan.
- 8:26So, sodium is Na. Teka, iano ko na nga
- 8:30muna. Okay. Certain elements exist as
- 8:34polyatomic multiatom molecules under
- 8:37standard condition. No, ayan. Seven
- 8:40elements exist as diatomic molecules.
- 8:44Contain two atom units. No, ito sila daw
- 8:48yon.
- 8:49hydrogen, oxygen, nitrogen,
- 8:53fluoride, no chlorine,
- 8:56bromine, iodine.
- 9:00Okay. Now, two other elements exist no
- 9:03in uh polyatomic
- 9:07arrangement. So sila no diatomic
- 9:13molecules
- 9:15while this no two other elements
- 9:19okay they are elements isa isang element
- 9:22lang sila but they can have no more than
- 9:26um
- 9:28they can have more than two no for
- 9:30example sulfur can have eight phosphorus
- 9:34can have four no So they are polyatomic
- 9:40no. Ayan.
- 9:46Okay. So
- 9:50not all classified as element ha. Laging
- 9:52ah dalawa lang no. Ito yung mga
- 9:56especially itong mga ito no.
- 9:58Okay. May mga elements that can have
- 10:02more. Okay.
- 10:09Okay. Now, what are ions? No, I are
- 10:13charged particle,
- 10:15no? Okay. Can be produced by adding or
- 10:19removing electrons, no? From a neutral
- 10:24atom.
- 10:28Example class [sumisingasing]
- 10:31okay a neutral potassium
- 10:36atom contains 19 protons and 19
- 10:41electrons.
- 10:43Okay? Ah during a
- 10:46ionic bond no ah it would transfer no
- 10:51one electron to its counterpart ' ba.
- 10:55ang role niya is ganito. So you have
- 10:57your sodium, may isa siyang electron.
- 11:01Ah this electron will be given no to its
- 11:05counterpart.
- 11:06So instead of having no um a balance no
- 11:1219 proton and 19 electron which would
- 11:15render zero charge
- 11:19dahil nga nagbigay siya ng isang
- 11:21electron no it would make
- 11:24your sodium
- 11:27no
- 11:29positive so magkakaroon siya ng charge.
- 11:33Ayun.
- 11:36Ay sorry potassium pala.
- 11:38Okay.
- 11:40Wait wait wait wait wait.
- 11:43Potassium no? Ayan.
- 11:47So ang tendency is to give no
- 11:52one electron. Ayan. Wala pa kasi akong
- 11:55kape no.
- 11:57[tawanan][sumisinghap] Ayan. So one
- 11:59electron no'no. So it would uh make this
- 12:03K plus. Ayan sorry.
- 12:05Okay. Now,
- 12:09okay. So yung potassium natin is now an
- 12:11ion. An ion no? Cold cat ion. Okay.
- 12:18Ayun.
- 12:20Hala.
- 12:22[tawanan]
- 12:24Ayan. Wait lang class ha. Magsi-zip lang
- 12:27ako ng coffee ko. [tawanan]
- 12:32Ang lamig kasi ba 'yan? Okay.
- 12:37Ayan. So tandaan class ha. Um yung ions
- 12:40napo-form siya with changes no in the
- 12:43number of electron no.
- 12:46So
- 12:48by adding
- 12:50okay you are forming an ion. By removing
- 12:54electrons you are forming cut ions no'
- 12:57gann lang naman.
- 13:02Okay another no? Okay.
- 13:07Saan na tayo? Cat ions no? Okay. Any
- 13:11neutral atoms that loses an electron
- 13:14forms a cution. No an atom may lose more
- 13:18than one electron. So kanina iyung
- 13:21example natin it's um
- 13:25potassium no? Okay.
- 13:28Then we also have magnesium.
- 13:31Yung magnesium kasi is group 2A if you
- 13:35recall no. So meron siyang two valence
- 13:39electron
- 13:40so that those valence electron can be
- 13:43loose no?
- 13:45Making him or this magnesium have 2
- 13:49plus. Ayan. So pwede siyang magkaroon ng
- 13:512 plus no? Ayan nag-loose siya ng two
- 13:55electrons. Ah another case is aluminum.
- 14:00Okay. Nag-loose siya ng tatlong
- 14:02electrons. Ayan. So ang nangyari meron
- 14:05siyang 3 plus. Okay. Ayun. So basically
- 14:10agag naglo-loose ng electron, the charge
- 14:13is positive.
- 14:15Okay. Teka lagay ko dito. Losing
- 14:21electron.
- 14:23If you're gaining electrons, so negative
- 14:26yung charge no kapag gaining.
- 14:33Okay. Ba't naman sodium yung nasulat ko
- 14:35doun? Ano? Potassium pala. Okay. Ayan.
- 14:40So ito siya ha. Okay.
- 14:47Okay. Now uh an ions no? So tandaan ha.
- 14:51Cut ion is positive and ion is negative.
- 14:56Ayan. So
- 14:59a neutral chlorine atom yan ang sabi
- 15:02dito meron daw siyang 17 protons and 17
- 15:06electrons.
- 15:09Normally si chlorine ano in an ionic no
- 15:14bond ah recipient siya no? More tendency
- 15:18to accept electron no. Ayan. So ang
- 15:22tendency it would accept additional one
- 15:25electron no. So ang mangyayari is 17
- 15:29protons,
- 15:3118 electrons, no? Making your chlorine
- 15:36negative no? Yung charge.
- 15:40Okay.
- 15:42Okay.
- 15:44Yan. An atom may also
- 15:48gain more than one electron. Ang
- 15:51magandang example natin that could gain
- 15:55more than one electron. Example natin si
- 15:58oxygen no and yung mga kagrupo niya no.
- 16:02Ayun ' ba sa si oxygen sa periodic table
- 16:05if you look then vertically yun yung mga
- 16:08ka-group niya.
- 16:11Okay. So yung mga ka-group niya class uh
- 16:13they can accept also no more than one
- 16:17electron. Okay.
- 16:22Okay. Class may questions ba sa
- 16:26formation ng ions?
- 16:29Okay. Basta yung logic natin ha. Ta-type
- 16:31ko. Kapag positive yung charge niya ibig
- 16:33sabihin
- 16:35loses elect negative.
- 16:42Charge. Teka
- 16:46teka teka teka.
- 16:49Hello hello hello yan. Negative charge
- 16:54gained.
- 16:56Ayan.
- 16:59Okay class. May questions ba? So far may
- 17:01questions?
- 17:09Tulog na yata ulit.
- 17:13Okay. Pasensya na kanina ha. [tawanan]
- 17:16Potassium palang pinag-uusapan ng
- 17:18sinulat ko. Sodium no na sobrang
- 17:22ano pa. Tulog pa ano? Tulog pa.
- 17:25Maya-maya
- 17:27gising na 'yan. Okay. Sige.
- 17:31Wala. Naintindihan niyo na? Maliwanag
- 17:33'yung uh
- 17:36maliwanag yung sa ano ha um
- 17:39formation nung ions and cut.
- 17:46Okay din yung pinagkaiba ng common name
- 17:48and uh chemical nomenclature na yung
- 17:53scientific nomenclature niya. No? Ayun.
- 17:58Okay.
- 18:00So sige uh naming an ions. So
- 18:03magpapangalan na tayo ng anons 'no.
- 18:07Okay.
- 18:09So ito 'yung ah atoms.
- 18:13Okay.
- 18:16Ah common iyung name niya is fluorine in
- 18:20its uh ionic form. Okay. Ah instead na
- 18:27yung dulo, no, it will be replaced with
- 18:30IDE. Ayan. So from florine it will
- 18:35become fluoride,
- 18:38no? Ayan.
- 18:40another no chlorine chloride
- 18:44bromine bromide ayan and so on no ayan
- 18:50so
- 18:52the name of an ion no ends with
- 18:58no ide
- 19:01aan so an ion
- 19:05okayan
- 19:10Okay. Predicting cut ion charges.
- 19:14Ayan. So nakita niyo 'to ano? Itong
- 19:16banda rito.
- 19:19So group 1A
- 19:21all of them would have ito to to no
- 19:27one plus dito.
- 19:30Okay? Group 2A all of them would have 2
- 19:34plus
- 19:36yan.
- 19:39Okay.
- 19:40Normally uh sa ionic bond kasi no ayan.
- 19:47Okay. Itong mga metals no they have the
- 19:50tendency to give electrons while
- 19:55okay yung mga nandito
- 19:58except with the noble gas. Hindi kasali
- 20:00to.
- 20:06Okay.
- 20:09Yung mga nandito yan ito. So they have
- 20:12the tendency to accept no electrons.
- 20:16Ayan.
- 20:18Now, what about the transition metals?
- 20:20No, yung transition metals, they are
- 20:23called transition metals, no? They can
- 20:25have
- 20:27two or more no
- 20:30oxidation state. For example, ito
- 20:33chromium.
- 20:35Yung chromium can have 2 plus can also
- 20:39have 3 plus
- 20:42iron ' ba pwede siyang magkaroon ng um
- 20:46feric and ferus. Ayan
- 20:50minsan sinusulat ng ano ah Roman numeral
- 20:53no ayan. So meron tayong 2 plus,
- 20:57meron tayong 3+ no? Ayan and so on.
- 21:02That's why they named transition metals,
- 21:05no? Ayan.
- 21:09Okay. Then um
- 21:13wait lang meron pa pala no sa group 3A.
- 21:18Okay. Ito naman
- 21:21like aluminum no they can um give no or
- 21:27provide three no okay uh electrons no
- 21:32they can give up no three electrons.
- 21:41Okay.
- 21:44Um nonmetal no forms an ion.
- 21:48Okay
- 21:51yan. Ito yung mga example natin.
- 21:57Okay? If they are member of the group 5,
- 22:036A,
- 22:057A no pababa.
- 22:08Ayan. Ito yung mga pwede nilang i
- 22:12gain no na electron. For example, 7A
- 22:16they are ready to accept one electron.
- 22:21Ito naman 2
- 22:23electron. Ito naman 3 electron. No so
- 22:28normally nandito yung mga ano natin
- 22:30tinatawag nating anons dito naman sa
- 22:33side na to.
- 22:36Okay. Ito yung
- 22:39cut ions no?
- 22:44An ions. Ayan.
- 22:47Okay.
- 22:50Ayan. Sige.
- 22:53So writing formulas
- 22:56ah
- 22:57from names of ionic compounds. Ayan.
- 23:02So ionic compounds contain both cut ion
- 23:07andion
- 23:09no? Okay.
- 23:13So yung example natin kanina no sodium
- 23:15chloride okay salt or table salt
- 23:21ionic compounds must have a net charge
- 23:24of zero. No, dapat sa zero iyung charge
- 23:26nila for them to be stable, no? Ayan.
- 23:31So, okay.
- 23:35Example here, sodium bromide.
- 23:39Okay. So, dalawang ions yung meron tayo
- 23:42dito, no?
- 23:44Ayan.
- 23:46So, meron tayong ah sodium
- 23:49ah cut ion. Meron tayong bromide no na
- 23:53anion.
- 23:55Now you have a positive
- 23:58negative that would be equal to zer. Ito
- 24:02yung mabubuo sodium bromide no? Ayan.
- 24:08Another. Paano pa ganito? Potassium
- 24:11sulphide
- 24:12hindi balance 'di ba? Yung um potassium
- 24:16natin is just 1 plus yung sulfur natin
- 24:22no.
- 24:24Ayan. It's it's
- 24:262-
- 24:30common multiple
- 24:32no. Okay. Ang gagawin class no kailangan
- 24:37dalawa yung potassium na counterpart
- 24:41no? So ang mangyayari
- 24:43yung one mo no. Since dalawang ah
- 24:47potassium ang gagamitin mo, may
- 24:49multiplier na two. Hence iyung magiging
- 24:52formula is K2S. No? Bakit? Kasi dalawang
- 24:58ah potassium yung kailangan no with a
- 25:00single sulfure.
- 25:05Okay. What about this one? Zinc
- 25:09sulfate. No. Okay. So meron tayong zinc
- 25:13na 2 plus and then we have no sulfate.
- 25:19Ayan.
- 25:20Okay. So there's no need for a
- 25:24multiplier kasi
- 25:26match naman yung kanilang ano charges. 2
- 25:30plus for the zinc, 2-fate,
- 25:34equal pa rin siya sa zero.
- 25:36Pero what if no? What if ah
- 25:42kailangan ng dalawang ano ah sulfate.
- 25:46So ang tendency kung iyung dalawa ang
- 25:47kailangan na sulfate doon tayo
- 25:49magkakaroon ng um parenthesis no tapos
- 25:54may number
- 25:56sa labas ng parenthesis no ayun.
- 26:02Okay.
- 26:04Ayan. Another
- 26:06ammonium
- 26:09phosphate.
- 26:10Ayan. Tignan niyo class.
- 26:15Okay. Ito yung sa ammonium.
- 26:18Ang charge niya is
- 26:21pos no? Or 1 plus.
- 26:24Pero ito,
- 26:27okay, 3 minus. So ibig sabihin you need
- 26:31three ammonium ion no to match it with a
- 26:37phosphate. So ang tendency class na
- 26:40nagkaroon ng multiplier na 3. Okay yung
- 26:43ating ammonium no? Ito
- 26:47indicating that we need 3 ammonium.
- 26:53Okay?
- 26:54Ayan. So ito iyung ammonium may open and
- 26:58close parenthesis and we also have
- 27:03three no na multiplier. Bakit? Kasi
- 27:06indicating na tatlo yung kailangan no to
- 27:09ah obtain a net charge of zero no? Ayan.
- 27:16So aluminum chromate ito. Okay. What if
- 27:21ganito? Ah pos 3 tapos
- 27:272-
- 27:29paano yung ganyan ' ba? So
- 27:33paano sila magba-balance? Ah paano sila
- 27:36magkakaroon ng zero no na ah charge?
- 27:41Okay. So what they need is iyung ang
- 27:44common least multiple nila is
- 27:51the least common multiple ah is 6. Ayan.
- 27:57Okay. So yung um
- 28:003+ 2 okay yung ah 2- multip 3 no? So ang
- 28:09tendency you would have 2 aluminum okay
- 28:14and then 3
- 28:16chromate no? Tatlo. Ayan. So that's how
- 28:22no we can uh write no the formulas.
- 28:26No. Um, from names of ionic compounds.
- 28:30Okay.
- 28:34Ayan. So, ito yung ano ah rules no.
- 28:40Okay. Number one is to write the metal
- 28:42ion uh formula no followed by
- 28:45nonmetallic or nonmetal
- 28:49ion formula.
- 28:52Okay. Um, combine the smallest wole
- 28:55number. of each ion to provide an
- 28:58overall charge equal to zero. No. And
- 29:01then number three, write the compound
- 29:04formula.
- 29:05Okay. For metal and nonmetal using
- 29:09subscripts, no? Determine from step two
- 29:14for each ion, no? Ayan.
- 29:18So ito yun.
- 29:23Okay. So
- 29:27uh right formula.
- 29:29Okay, for the metal and metal nonmetal
- 29:32ions. Okay.
- 29:36Yan.
- 29:38And then determine the number of each
- 29:41ion that will provide a net charge of
- 29:44zero. No so yan.
- 29:47Okay. So dito no 2+ 3- ito yun.
- 29:56Okay. So para mag-balance sila, um
- 30:00ilang barium yung kailangan mo? Tatlo.
- 30:03Kasi yung tatlo na to no this would
- 30:07produce
- 30:09okay 6 plus.
- 30:12Okay. Then this one,
- 30:16okay,
- 30:18meron kang
- 30:196 minus no. Then you'll have zero
- 30:24charge. No, ito yung magiging name po
- 30:26niya or formula no.
- 30:31Okay.
- 30:34Ayan. Sige nga class. Okay. Um,
- 30:39write the chemical formula for magnesium
- 30:41oxide. O, try nga.
- 30:46Okay. So,
- 30:49ah pag binasa natin siya no magnesium.
- 30:53So dapat ano ah isa lang no. Hindi.
- 30:57Okay. Ayan. Ito no.
- 31:02Okay. Umm. Mmm
- 31:06then oxide hindi naman sinabing dioxide
- 31:09trioxide. So um ag kung
- 31:12magka-cancellation tayo or mag um
- 31:15mi-minimiz iaano natin yung mga choices
- 31:17no. So tanggal na ' itong dalawa. So ah
- 31:24dalawa na lang yung possible choice no?
- 31:26Ayan. Pero since we know na yung um
- 31:30charge ng oxygen,
- 31:33okay, we have 2-
- 31:36tapos ang magnesium kasi ay belonging sa
- 31:40at group 2a.
- 31:42So meron siyang 2 plus, no? Ayan. So
- 31:45ibig sabihin tig-isahan lang yung
- 31:48kailangan nila no. Yan. So answer would
- 31:51be A. No. Okay. Um, if you recall nung
- 31:57high school kayo ' ba, okay, may
- 32:00pinapagawa pa sa inyo yung Chris Cross
- 32:03method ba? [sumisinghap]
- 32:06Okay. You remember that? Ayan. May
- 32:09paganon pa no?
- 32:13Okay. Ayan. So, pinakita no?
- 32:18Ayan. So may
- 32:212 + 2-
- 32:250 no?
- 32:29Ayan.
- 32:32Okay. So that's how we write the
- 32:36formula. No. Okay. From names of ionic
- 32:39compounds. Okay.
- 32:43Naming binary compounds. No, how do we
- 32:47name binary compounds? Okay.
- 32:53Teka. Parang nag-move yata yung slide.
- 32:56Ayan. Okay.
- 32:57Uh, binary compounds containing a metal
- 33:00which forms only one cut ion. Binary
- 33:03compounds containing a metal which can
- 33:06form multiple cut ions. Noan.
- 33:11So, binary compounds contain a metal
- 33:13which forms only one cut ion. Ito.
- 33:22Okay.
- 33:27Parang naulit 'to. Ayan.
- 33:31Okay. Name the compound ah magnesium
- 33:34bromide.
- 33:39Okay.
- 33:42The compound is okay. Okay. Provide the
- 33:45symbol.
- 33:47Okay. Tingin ko naman kaya niyo na to
- 33:49no? [sumisinghap] Ayan. Sige mag-name na
- 33:52lang tayo ulit.
- 33:54Ayan. So writing formulas for ionic
- 33:57compounds. What would be the formula
- 34:01no for this? Sige nga try.
- 34:09Letter C. Okay. Ah sige alamin natin
- 34:13bakit letter C. Sige nga try natin.
- 34:18Okay. Ah dun sa periodic table
- 34:22saang grupo nakalagay no si
- 34:26ah
- 34:27aluminum no? Okay ba nakagroup siya 3a
- 34:32ba.
- 34:33Tapos si oxygen naman is dalawa ang ah
- 34:38pwede niyang tanggapin eh no. So six.
- 34:41Okay. L na nga natin. So the correct
- 34:45answer no should be okay. Aluminum oxide
- 34:49no.
- 34:51Okay. Bakit hindi tayo gumamit ng Roman
- 34:54numeral no? Ah hindi siya transition
- 34:57metal no. Isa lang kasi yung ano niya
- 35:00yung ah charge na pwede no. Okay. So
- 35:06that's a 3 plus no 4
- 35:11aluminum. Okay.
- 35:15Ayan. Tapos uh for oxygen you have
- 35:202-
- 35:24oxygen.
- 35:26So sige lagay ko dito. 3+ 2- ginagawa
- 35:31niyo dati ba ginaganito.
- 35:33Ayan so ito daw number na to would go
- 35:36here. Dito
- 35:39number na to yung 3 plus would go here.
- 35:41So you would have
- 35:44Al2
- 35:46O3. Naalala niyo yun?
- 35:49Tama ba? Ganun ba yung pinapagawa sa
- 35:51inyo before?
- 35:58Sino nakaalala?
- 36:01You can you can you can also do the same
- 36:02ha? If that works for you, okay lang
- 36:05saakin ha. You can do the same.
- 36:08Ayun basta tandaan ha.
- 36:11How would you know this numbers?
- 36:15No, you have to look
- 36:18in your periodic table. Nasaang grupo
- 36:20sila ano t's makikita mo rin do
- 36:23nakalagay din yung ano oxidation state.
- 36:26Okay?
- 36:28Ayan. So yun yung mga clue ha. How to
- 36:32name them or write the chemical formula
- 36:34no properly.
- 36:41Okay. Ayan. So pinaliwanag lang niya.
- 36:44Okay. Sige nga. Okay. Write the chemical
- 36:48formula. Teka, sino ba yung nag-recite
- 36:50natin kanina?
- 36:56Okay. Ah ang sagot nila ay B. Unang
- 36:59nagsagot si Jillian Mercado. No. Okay.
- 37:04Bakit B? Teka.
- 37:08Yung yung calcium
- 37:10saang group ba siya bilong ba?
- 37:14Saang group belong ang calcium? Tingnan
- 37:16niyo nga sa periodic table niyo.
- 37:23Okay? Group 2 no? 2a yan. So ibig
- 37:27sabihin anong charge ng calcium?
- 37:33O anong charge ng calcium? 2 minus
- 37:37o two
- 37:392 plus
- 37:41metal yan eh. 'Di ba? Ibig sabihin may
- 37:43tendency siyang mag-give up no ng ah or
- 37:46mag-donate no ng electron. Ayan.
- 37:54Okay. What about sulfur? Saan siya
- 37:57belong na group?
- 38:01Six.
- 38:02Okay. Ilang electrons ang kulang niya
- 38:05para maobtain niya or makamit niya yung
- 38:08tinatawag na octet or eight electrons?
- 38:12O ilan dapat ang tanggapin niya no? So
- 38:14dapat dalawa. Pag tumanggap siya ng
- 38:16dalawa
- 38:172 minus.
- 38:19Okay. So, C
- 38:222+ S2-
- 38:27agina yung tinatawag na ano cris cross
- 38:30no? So you would have
- 38:33C2
- 38:35S2. Ang problema no,
- 38:39do we do we need to write two dito?
- 38:43Dapat bang ilagay natin 'tong two?
- 38:47Hindi 'di ba? Kasi
- 38:50ah it would cancel no. Pareho lang naman
- 38:53balance sila eh. Isa isa lang ang
- 38:55kailangan mo ba? Okay. So dapat C
- 39:01S yan.
- 39:04Okay. Calcium.
- 39:06sulfide. Okay. Ayan. So the answer is B.
- 39:12No. Ayan.
- 39:17Okay.
- 39:19Ayun. So teka. Yan.
- 39:24Okay. Naming compounds. No. Containing
- 39:27metals with multiple
- 39:29charges. Okay. Ito na.
- 39:31What if no? Hindi na alkali or alkaline
- 39:35earth metals ang ginagamit mo? What if
- 39:39gumagamit ka ng tinatawag na transition
- 39:43metal? Yun nga gaya ng sabi ko kanina
- 39:45ang transition metal ay may no magkaiba
- 39:50or pwedeng magkaroon ng multiple no
- 39:53charges. Ayan. For example, may copper
- 39:571 plus tapos may copper
- 40:012 plus no yan. May iron 2 plus, may iron
- 40:073 plus. No yan. So what if ganon no?
- 40:13Yan. To specify the cut ion charge in a
- 40:17compound, a Roman numeral. Teka,
- 40:21familiar ba kayo sa Roman numeral ' ba
- 40:24pag ganito?
- 40:26One,
- 40:29two,
- 40:31three
- 40:33ayan three
- 40:37oto four ito five 'di ba?
- 40:43Familyar ba? Familiar.
- 40:45Ayan ha. So ibig sabihin no sa
- 40:49pagpapangalan
- 40:51na maglalagay din po tayo yan kagaya ng
- 40:53ganito
- 40:56yan. Okay.
- 41:03When a metal forms only one cut ion,
- 41:07there is no need to use Roman numeral.
- 41:11Ayan. So balikan natin yung kanina no
- 41:13kasi kanina pakita ko sa inyo ha.
- 41:17Yan ba ito
- 41:21hindi ito yung choices no? Hindi sila
- 41:25yung choices.
- 41:28Okay? Bakit? Kasi si aluminum hindi
- 41:30naman siya transition metal. So there's
- 41:33no need for you to write Roman numeral
- 41:37no? So mali na agad sila.
- 41:41So yung dalawang possible answers mo no.
- 41:45Okay yung B sana at saka yung C however
- 41:48no dito kasi no ginawa niyang dialuminum
- 41:53trioxide no. Ayun.
- 41:58Okay.
- 42:00Ayan. So, balik tayo.
- 42:04Ayan. So, okay.
- 42:09Classical names, no? Rules for naming
- 42:11compounds involving metals that could
- 42:14form multiple charges. Ayan.
- 42:19First write the cut ion name.
- 42:23No, write the cut ion charge in Roman
- 42:26numerals in parenthesis.
- 42:28No, uh write the root of the anion and
- 42:33use IDE suffix. No exception. Okay. For
- 42:39metals that only form two cut ions, a
- 42:42lot root with either an OUS or IC suffix
- 42:47can also be used, no? So ang rules daw
- 42:51is kailangan siya ay
- 42:54no having Latin name. Dapat may Latin
- 42:58name daw siya or Latin roots, no?
- 43:01Example no.
- 43:04Um
- 43:06sa iron is
- 43:09no sa copper coprum
- 43:12ba sa lead plumb no so instead of ah
- 43:22ano ending no with um okay so it would
- 43:26end no in us or IC depende depende
- 43:33no okay on its
- 43:37charge no or oxidation state yan okay so
- 43:44for example class you have copper 1 plus
- 43:49so pag sinunod natin yung um using roman
- 43:53numerals in parenthesis
- 43:58ayan
- 44:01Okay.
- 44:05Now, if we use no uh classical name, no
- 44:09because it has Latin root eh okay, it
- 44:12would be cuprus.
- 44:16Okay? Basta cuprus yung mas mababa ha na
- 44:19charge.
- 44:23Tapos yung mas mataas no yung Cuprick.
- 44:26For example, copper 2 plus. So copper
- 44:31Roman numeral 2 and then another name is
- 44:36Cuprick.
- 44:39Ayan.
- 44:41Okay.
- 44:43Ayan. So ganun din sa iron. So we have
- 44:47ferus.
- 44:48We also have Feric. No tandaan class ha.
- 44:53yung mas mababa na number or oxidation
- 44:58no kung ito pos 2
- 45:00ito ah pos 3 no ayan
- 45:06so yung two yung gagamit ng us kasi siya
- 45:09yung mas mababa
- 45:11tapos yung three ang gagamit ng IC kasi
- 45:15siya yung mas mataas
- 45:18nasundan. Na-gets po ba guys?
- 45:21Okay. Ngayon uh
- 45:25sir, papaano namin malalaman? Alin ang
- 45:27mas mataas, alin ang mas mababa? Ah ito
- 45:32class
- 45:33kung ano 'yung mga charges na meron
- 45:35siya, you can look in your periodic
- 45:42table.
- 45:44Okay.
- 45:45So from there makikita mo na ah meron
- 45:48pala siyang
- 45:501 plus, meron pala siyang 2 plus, meron
- 45:53pala siyang 3 plus, no? Ayun. So pwede
- 45:56niyong malaman,
- 45:58okay? Kung ano yung mga charges na
- 46:00possible.
- 46:02Okay. So particularly isang part ng
- 46:04periodic table do mismo sa mga
- 46:05transition
- 46:08metals. Okay? Plus uh during the exam
- 46:13you have the liberty
- 46:16no the freedom
- 46:18to have your periodic table no. Ayun,
- 46:22your exam is 100 items.
- 46:26Uh, multiple choice. So, what you're
- 46:27allowed are the following no? Periodic
- 46:30table. Meron kayo dapat non.
- 46:33scientific calculator.
- 46:36Okay. And a stretch paper, no? A blank
- 46:40no bond paper given to you by your
- 46:43proctor ha. So uh we would provide we
- 46:48would provide
- 46:51okay
- 46:53formulas. Anong formulas? Wala pa naman
- 46:56tayong heavy na formula ah.
- 47:00You mean conversion factors?
- 47:05Uh we'll see if it is that complicated.
- 47:09Pero ag basic
- 47:12normally I don't provide eh kung basic
- 47:15lang na conversion e. Ibig sabihin it is
- 47:18meant for you to really know it eh ganon
- 47:22ha. Ayan I would tell I would tell kung
- 47:24anong mga formulas yung available or if
- 47:27you needed you needed those no'. Ayan.
- 47:29So during exam those are the things that
- 47:32you can have. Ayun periodic table,
- 47:36scientific calculator and scratch paper.
- 47:39No? Okay. Ayan. So
- 47:45okay ayan ha. So ito 'yung ano naming
- 47:47nila.
- 47:49Okay.
- 48:01Now, um, naming compounds containing
- 48:05metals with multiple charges. Ayan,
- 48:07example
- 48:10F or ion sulfide, no? Ayan.
- 48:15So,
- 48:17name the cut ion. recognized.
- 48:20Okay. Uh iron is a transition metal and
- 48:24can have more than one possible charge.
- 48:28So use the charge of nonmetal. So yung
- 48:31charge daw kasi nito,
- 48:34okay since um
- 48:36for this to become stable, it needs two
- 48:39additional electrons. So therefore, 2
- 48:43minus.
- 48:45Okay eh since ah sinulat natin siya F S
- 48:51wala kang nakikitang subscripts. So ibig
- 48:53sabihin no this iron would have
- 48:59no
- 49:012 plus.
- 49:03Okay? So kung 2 minus yung sulfur mo
- 49:06dapat 2 plus din yung ion. Hence
- 49:12okay it is iron.
- 49:15Open and close parenthesis 2 no? Ayan
- 49:18nakalagay
- 49:21pag iron 2 teka ferus or feric?
- 49:28Oh try nga kung naintindihan niyo
- 49:31kanina.
- 49:34If it is iron 2 plus is it ferus or
- 49:38feric?
- 49:41Okay. Ferus no? Bakit hindi feric?
- 49:45Okay. Kasi yung feric ginagamit natin
- 49:47for
- 49:503 plus no? Ayan.
- 49:57Okay. Then the name of the anion is
- 50:00sulfide. So ang pwedeng name niya is um
- 50:04ferus sulphide or iron 2 sulfide no?
- 50:09Teka tingnan nga natin yan iron 2
- 50:12sulfide.
- 50:13Ayan sige ito na. What about this one
- 50:17class?
- 50:20CRCL3.
- 50:24So the correct answer, sige count natin
- 50:27to.
- 50:29Ito.
- 50:32Ito no. So the correct answer is C.
- 50:36Bakit?
- 50:38O kasi yung CL mo, Cl is
- 50:43ah 1-us. Isa lang yung negative niya.
- 50:47But you have three, no? Tatlo yung
- 50:49nandito e. So pag ni-reverse mo iyung
- 50:51crease cross indicate it shows us that
- 50:54this chromium no is three positive no.
- 51:00Ayan. So ito yung pwedeng sagot no. Ang
- 51:05chrome ba may Latin? May Latin ah roots
- 51:10ba siya na? Parang wala no? Okay. Hindi
- 51:13siya kasama doun sa nabanggit. Ayan.
- 51:18Okay.
- 51:20Ayan.
- 51:22Ayan class. Pinakita lang ha. Ayan po
- 51:24yung ano.
- 51:26Okay. Papaano siya pinangalanan no?
- 51:30Ayan.
- 51:33What about this one? Yan.
- 51:38Copper one oxide. Um bakit copper one?
- 51:43No
- 51:45teka. Ayan.
- 51:47Kasi yung copper one uh states na yung
- 51:50charge niya is pos no or 1 plus. Ayan.
- 51:55So naging formula niya is ayan copper ah
- 52:00dalawa tapos
- 52:03oxygen. Ito po. Ayan. Okay.
- 52:10Oh,
- 52:14what about this one? Teka. Sinong nauna?
- 52:16Iba naman. Kawawa naman yung iba. So
- 52:18mahabol. Ito. Ayan. Damay na natin
- 52:21silaung mga nauna. Ito.
- 52:27Ayan. Okay.
- 52:29So the correct answer for this sige ah
- 52:34nakalagay dito 10.
- 52:36No.
- 52:39Y'yan na ba 'yung yan na ba 'yung
- 52:40pinakamataas 14? Stanic na ba 'yan or
- 52:44Stanus?
- 52:46Ayan.
- 52:48O ano kaya yung tin diyan? Stanic or
- 52:50Stanus? Sige nga try nga.
- 52:54Tama ba? SN ' ba? Stanic or Stanus?
- 53:02Ah Stanic na. Okay. Oh yan.
- 53:08Okay. So
- 53:11ibig sabihin yung SN dito ano yung SN is
- 53:164
- 53:18plus.
- 53:21Therefore, ang fluoride kasi ay
- 53:24kamag-anak ni chlorine 'di ba? Ni
- 53:27chloride. Ayan. Magkamag-anak sila. So
- 53:30therefore,
- 53:31ah one minus naman ito. So kakailanganin
- 53:34mo ng apat. No, kung ang CL mo ay sorry
- 53:37CL tuloy
- 53:39yan na naman tayo. Lutang na naman tayo.
- 53:42Sorry. Okay. [sumisingasing]
- 53:45Minus no? Teka tingnan nga natin
- 53:49yan. So apat ang kakailanganin mo. Ayan
- 53:53para mag-match sila. Okay. Ayan.
- 53:57So pinaliwanag lang niya. Yan. You need
- 53:59four ah fluoride no
- 54:04or florine
- 54:06yan to match ah yung tin
- 54:12no na charge.
- 54:15Ayan
- 54:18rules for naming molecular compounds. So
- 54:21how do we name molecular compounds? No
- 54:24write the name of the first element
- 54:26including the appropriate prefix. So ito
- 54:29gagamit na tayo ng ano um
- 54:33mga molecular compounds no.
- 54:36Ayan
- 54:38for the second element including the
- 54:40appropriate
- 54:42prefix and ending in IDE. No sige nga
- 54:47try natin ito.
- 54:50So based on their number pwede daw
- 54:53gumamit ng mono if there's one di tri
- 54:57tetra penta, hexa hepta octaona deca.
- 55:02No'no. Ayan. These are the prefixs
- 55:06that you can use 'no? Based on the
- 55:08number of atoms. Okay.
- 55:12Sige nga try natin ito. Naku, na-reveal
- 55:15ko.
- 55:17Ayan.
- 55:19Okay. Sige. So since you have two o how
- 55:24how would you call this?
- 55:28Oh, dalawa yung kanyang phosphorus.
- 55:31Sige nga. Anong pangalan?
- 55:40Oh,
- 55:43use the ano? Use the prefix.
- 55:47Okay, correct no. Ayan. Sige na nga. Si
- 55:50si Miss Celesti no Magsino yung unang
- 55:52nakasagot. Ayan
- 55:54die phosporus
- 55:59penta kasi five eh. pento pentoxide no
- 56:04okay
- 56:06tama di
- 56:09phosphorus kasi dalawa yung phosphate
- 56:14ba
- 56:16pentoxide
- 56:18bakit kasi meron silang limang oxygen
- 56:24no
- 56:26diposporus pentoxide
- 56:32Okay. Ganito
- 56:35' ba dapat penta
- 56:39teka
- 56:41penta kasi dapat 'di ba? Pero bakit
- 56:44kinancel yung a no? Kasi hindi naman
- 56:47magandang pakinggan ' ba? Pentaoxide.
- 56:51So ginawa na lang pentoxide no. Ayan.
- 56:56So the O or A in mono and penta
- 57:02is usually dropped no tinatanggal hindi
- 57:06na sinasama
- 57:08if there are
- 57:10two vowels next to each other no ayun
- 57:15tandaan ha okay
- 57:18Yan.
- 57:26Okay. Ano 'to? Ayan.
- 57:30Ba't parang typo 'to?
- 57:36Ah okay. Ayun. Sige move na nga natin.
- 57:43Ayan. Can you please name? Okay. Ito
- 57:48anong name niyo dito?
- 57:53Letter A. Okay.
- 58:03Ayan. Okay. Okay. Namamatay-matay yung
- 58:06ano ko headset ko. Ayan. Okay. So bakit
- 58:09A no'? Ilan ba yung sulfur natin no'?
- 58:15Ayan isa no? Okay. Ta's yung oxygen
- 58:18natin dalawa.
- 58:20Sure ba kayo A talaga? Hindi ito?
- 58:26Hindi B. Sige try natin. So the answer
- 58:29is A. Ayan.
- 58:33Okay. So, sulfur indicates no yung
- 58:37sulfur kasi na word mismo, no? It
- 58:40indicates one atom of sulfure. Then
- 58:43dioxide you have two uh atoms of oxygen,
- 58:47no?
- 58:49Yan. O sige try natin ito pa para
- 58:51mabilis tayo.
- 58:54Oh, anong sagot niyo?
- 58:56Oh sinong nauna? Lagi na lang sila
- 58:58nauuna. Naka-ready na.
- 59:02Iba naman.
- 59:03Ayan.
- 59:08Okay. O sige. Ayan. Teka ka yung mga
- 59:13nauna. Syempre magalit yang mga yan.
- 59:22Okay na. Ayan na. O sige. Umm.
- 59:26Bakit ang sagot natin ay C? Okay clarify
- 59:31natin. Ilang nitrogen? Dalawa. So ibig
- 59:36sabihin kung mag-e-elimination tayo sa
- 59:39choices po natin, hindi na po kasali si
- 59:41A, hindi na kasali si D.
- 59:47Ayun. Plus ha, kahit sa mga board exam,
- 59:50you also do that ha. magage-elimination
- 59:52ka para tumaas iyung chances mo of
- 59:55getting the correct answer. Okay? Bakit
- 59:59hindi pwede
- 1:00:02si B? No, tignan niyo yung oxide. Ayan.
- 1:00:09Hindi siya nagma-match up. Okay? Kasi
- 1:00:14meron kang five ba?
- 1:00:18Okay. So ang appropriate name would be C
- 1:00:24kasi dinitrogen
- 1:00:27pentoxide pento
- 1:00:305 ba? Okay.
- 1:00:35Ayan. So the correct answer is C.
- 1:00:38Opo.
- 1:00:45Ayan. Okay. Now, binary acids. O,
- 1:00:50magpangalan na rin tayo ng binary acids.
- 1:00:51Teka, ano na ba yung mga napangalan
- 1:00:53natin? Teka nga.
- 1:00:56Ay, sige, mamaya na.
- 1:00:58Okay. Binary acids. Certain binary
- 1:01:01compounds containing hydrogen behaves no
- 1:01:06as acid no in water and have special
- 1:01:09names. Okay. Ayan. So HCL
- 1:01:16no
- 1:01:18hydrogen
- 1:01:21chloride
- 1:01:23in aquous form hydroric
- 1:01:27acid.
- 1:01:29By the way class, yung ibig sabihin ng G
- 1:01:31dito hindi grams ha.
- 1:01:33It means
- 1:01:36gas.
- 1:01:38Yung AQ
- 1:01:42aquus no?
- 1:01:44Ayan.
- 1:01:47Okay po ba?
- 1:01:54Okay. Uh hydrogen is always written
- 1:01:57first in an acid formula. No.
- 1:02:04Okay. Indicates the compound is an acid.
- 1:02:09No tigan niyo. Versus ito NH3.
- 1:02:14Okay. Itong CH. 4. Napansin niyo no? Ah,
- 1:02:19pwede namang isulat na nasa unahan yung
- 1:02:22hydrogen. However, no ah to avoid
- 1:02:26confusion we first write hydrogen sa
- 1:02:29simula, no? Kapagka siya ay acid.
- 1:02:34Okay. Pero ito kasing mga to, these are
- 1:02:37non acids, no? Yan. Ammonia and ano ano
- 1:02:43to methane, no?
- 1:02:46Ayan.
- 1:02:51So rules for naming binary acid,
- 1:02:55write the prefix hydro.
- 1:02:58Okay. Then follow the root of the second
- 1:03:02element with IC.
- 1:03:05So napansin niyo hydro
- 1:03:08chloric
- 1:03:10may IC tapos yung hydro.
- 1:03:15Ayun. Ay plus wait lang ha. Yung pusa ko
- 1:03:17kasi kinukulit ako. Teka.
- 1:03:22Ayan okay na.
- 1:03:24Kanina pa yang mingming na yan eh.
- 1:03:27Okay.
- 1:03:28[nagbubuntong-hininga][sumisinghap]
- 1:03:29Ayun. So
- 1:03:32nasundan ba class? Nasundan. Pa-thumbs
- 1:03:34up naman kung nasundan ha. Pag acid daw
- 1:03:38saan daw dapat nagsisimula ang
- 1:03:41name no with the prefix hydro and ends
- 1:03:46iyung second iyung second element ends
- 1:03:48with IC. No teka may iba pa bang
- 1:03:51example?
- 1:03:53Okay. And then add the word. Ayan na
- 1:03:55'yung panghuli. Mag-a-add daw tayo ng
- 1:03:58word na acid.
- 1:04:00So para ma-specify talaga na siya ay
- 1:04:02isang acid. Okay?
- 1:04:07Ayan. So for example, hydro
- 1:04:10yan sulfuric
- 1:04:14acid.
- 1:04:15Okay.
- 1:04:18Hydrosulphuric acid.
- 1:04:21HI. Sige nga kayo nga.
- 1:04:24Hi, can you name HI no?
- 1:04:30Okay, correct. Hydroiodic
- 1:04:33acid. Mga mamaya pag sa exam ha
- 1:04:34nakalagay hi biglang may mag-reply ano,
- 1:04:38hello.
- 1:04:41[sumisinghap]
- 1:04:42Okay.
- 1:04:44Ang sasagot ng hello ah aawayin ko ha.
- 1:04:48[tawanan]
- 1:04:49Baka mamaya hi kaya to. Hi.
- 1:04:54Okay. No, hindi hydroiodic
- 1:04:57acid. Tama ba? Ayun. Tama no. Bakit
- 1:05:01iodic no? Kasi hydro. Ayan.
- 1:05:05Iodine no. Ito iodic.
- 1:05:10Okay.
- 1:05:12Acid. Hi. No, hydroiodic acid. Plus
- 1:05:19clue. Sa exam po ba maraming naming?
- 1:05:23Short answer, yes. Marami no? Sa prelims
- 1:05:29marami.
- 1:05:32May computation ba? Meron din syempre
- 1:05:35no? May naming? Meron. Marami. Okay.
- 1:05:39What about sa love part? Sa love part
- 1:05:41kasi hopefully makapag-love na talaga
- 1:05:44tayo ha sa next Saturday bago yung week
- 1:05:47ng exam no. more of uh familiarization
- 1:05:51nung ano nung
- 1:05:53materials instruments. Ano yung
- 1:05:56ginagamit to measure mass? Ano yung
- 1:05:58ginagamit to measure volume? No ayon.
- 1:06:03Okay.
- 1:06:07Ayan. So
- 1:06:10hydrocyenic.
- 1:06:11Ayan. Ito
- 1:06:14acid.
- 1:06:16Okay. And HF. So hydrofluoric
- 1:06:20acid yan HF.
- 1:06:26Okay. Ah review of binary compound
- 1:06:29naming no molecular.
- 1:06:32So sabi dito
- 1:06:34binary compounds usually end in IDE.
- 1:06:38Okay.
- 1:06:40Molecular two nonmetals
- 1:06:43uses prefix to name both elements. Ayan.
- 1:06:50So binary compounds usually end in IDE.
- 1:06:53Yan.
- 1:06:57Okay. Ionic. Ionic is metal and
- 1:07:00nonmetal. No so parang ano lang to
- 1:07:02summarization lang no itong part na to
- 1:07:05ng slides.
- 1:07:07Ayan.
- 1:07:15Okay. Paano kung acid yan pinapaliwanag
- 1:07:18dito no? Ayan teka.
- 1:07:22If it is uh molecular or also known as
- 1:07:26covalent
- 1:07:30yan.
- 1:07:33Ito daw yung rules, you know. Okay.
- 1:07:37Then what if it is ionic? No, ito daw
- 1:07:39yung rules, no? Sa ionic ah you have to
- 1:07:43consider ha yung sa ionic kasi may
- 1:07:45transition metals tayo, no? At saka may
- 1:07:48alkal alkaline metals at saka alkaline
- 1:07:50earth metals no? Yung group 1A and group
- 1:07:532A, no? Yan. You also have to consider
- 1:07:56that ha. Yan. Sa ionic ito. Sa acids ito
- 1:08:01no?
- 1:08:07Oh sige nga. Ito nga oh.
- 1:08:11O mabilisan na lang.
- 1:08:14Okay. Letter C. Okay. Bakit? Ah yung
- 1:08:20copper mismo, ano? Teka. Tama ba? Yung
- 1:08:24copper mismo ay isang transition metal.
- 1:08:28Okay yun yung isa. So dapat gagamit ka
- 1:08:31ng Roman numeral. Another name for this
- 1:08:35kung hindi copper to
- 1:08:38no pwedeng cuprus
- 1:08:41yan. Bakit? Kasi mas mababa no yung two
- 1:08:44compare sa three no.
- 1:08:47Ayan.
- 1:08:50Okay
- 1:08:52ayan. What about this one?
- 1:08:57Okay. Ayan. Sige. So ang sagot natin is
- 1:09:00D no tricarbon din
- 1:09:04yan. Para mabilis na tayo.
- 1:09:08Okay. What about this one?
- 1:09:13So
- 1:09:16ayan. Teka, ango din ba ay
- 1:09:19ang ayo din ba ay isang uri ng
- 1:09:22transition metal? Hindi. So ibig sabihin
- 1:09:25ito ay
- 1:09:27cancel na no?
- 1:09:31Ayan. So hindi siya pwedeng kasali.
- 1:09:34Anan. Sige na nga. Ayan. So the answer
- 1:09:36should be ano bang sagot nila? A no?
- 1:09:41Iodine trioridean.
- 1:09:48Okay. Now, another
- 1:09:54o anong tamang pangalan ng acid na to?
- 1:09:59Okay. C no hydro chloric acid kasi ' ba
- 1:10:06hydro.
- 1:10:08Tapos you would notice the choices. Wala
- 1:10:11namang nakalagay na word na acid dito.
- 1:10:13So eliminated na to.
- 1:10:15O rin wala rin. So eliminated na to. Na
- 1:10:18siya kasali sa choices.
- 1:10:21Now dalawa na lang ang option natin.
- 1:10:25Since ang ruling starts with hydro, ends
- 1:10:29with IC, ito ends with Ous. Hindi na
- 1:10:33siya kasali. So ito yung tamang sagot
- 1:10:36no. Ayan.
- 1:10:38So C no.
- 1:10:42Okay.
- 1:10:45Ayan.
- 1:10:46What about this one? Polyatomic ions no?
- 1:10:50Ayan. So meron tayong tinatawag na
- 1:10:52polyatomic ions ha. So yung mga ions
- 1:10:54hindi lang siya laging single atom
- 1:10:59no or single ion. No yan. We can have
- 1:11:02polyatomic ions. An ion that contains
- 1:11:06two or more elements. No'no. Halimbawa
- 1:11:10cyanide
- 1:11:12an ion. No, ito CN-
- 1:11:17yan.
- 1:11:20Naming compounds containing polyatomic
- 1:11:24ions is similar
- 1:11:26to that of for binary compounds. No
- 1:11:29ayan.
- 1:11:31Yan. So cut ion is named followed by the
- 1:11:35anon. The names, formulas and charges of
- 1:11:40common polyatomic ions should be
- 1:11:42learned. No rules for naming. Name the
- 1:11:45cut ion then name the anion. No? Ayan.
- 1:11:48So sige nga try natin.
- 1:11:52[nililinis ang lalamunan]
- 1:11:53Ayan. Ito 'yung mga polyatomic ions.
- 1:11:57'Yan. Acetate, ito. Ammonium,
- 1:12:01hydrogen, carbonate.
- 1:12:04Ayan.
- 1:12:05And so on, no? Yan yung iba't ibang
- 1:12:10um
- 1:12:11what you call this? Polyatomic
- 1:12:14ions and they're different.
- 1:12:17charges. Ayan, nandiyan na po.
- 1:12:20Naka-table na no.
- 1:12:23Okay.
- 1:12:34Ayan. Mmm.
- 1:12:39Um okay oxy and ions no polyatomic ions
- 1:12:44that contain oxygen often ends no ah in
- 1:12:50the suffix
- 1:12:52at a 8 or it no okay sino-sino ba ong
- 1:12:59mga to no okay at a compounds contain
- 1:13:06more oxygen atoms than IT. So kanina '
- 1:13:10ba meron tayong ferus at saka feric.
- 1:13:13Ferus kapag mas mababa yung yung Oag mas
- 1:13:17mababa yung ano ah oxidation.
- 1:13:21IC kapag mas mataas. Ito naman based on
- 1:13:24the number of oxygen. Kapag mas maraming
- 1:13:27oxygen at a.
- 1:13:30mas mababa yung oxygen it yung kanyang
- 1:13:33ending no.
- 1:13:36Ayan.
- 1:13:39Okay. For elements that form multiple
- 1:13:43ions with oxygen, okay, prefixes are
- 1:13:47also added
- 1:13:50per okay adds one oxygen
- 1:13:55to the AT root no and then hypo
- 1:14:00subtracts one oxygen from IT root. Okay.
- 1:14:05Teka nga balikan natin 'tong ano table
- 1:14:07dito.
- 1:14:09Ayan.
- 1:14:11Sige tingnan natin to. Class
- 1:14:14sulfate.
- 1:14:16Sulpe.
- 1:14:18Sulfate ends in AT.
- 1:14:22Sulpite
- 1:14:25tingan niyo yung number nung ano. Tingan
- 1:14:26niyo yung number ng oxygen nila.
- 1:14:304
- 1:14:32and then 3
- 1:14:35ba
- 1:14:37ayan so
- 1:14:39mas mababa yung 3
- 1:14:42kaya sa four hence siya yung sulfit ito
- 1:14:46yung sulfat
- 1:14:49nitrate.
- 1:14:51Nitri.
- 1:14:53Nakita.
- 1:14:54Okay. Tatlo. Mas mataas to kaya ate.
- 1:14:59Dalawa lang kaya no?
- 1:15:04Ayan.
- 1:15:08Paano yung mga walang variant or mas
- 1:15:10mababa sa kanila? No, they have ATE.
- 1:15:14Ayan.
- 1:15:16Example chromate, carbonate, chlorate,
- 1:15:19chromate no. Ayan.
- 1:15:29Okay. Sige nga. Try. Ayan.
- 1:15:36Okay. Ito no. So meron kang ah
- 1:15:41ayan.
- 1:15:42Paano kung ah apat no na
- 1:15:47variation. Ayan. Halimbawa no kung
- 1:15:50walang um ito yung ah dalawa kanina.
- 1:15:55Kung nagbawas daw ng isa. Okay ang sabi
- 1:15:58kanina ' ba kung nagbawas daw tayo ng
- 1:15:59isa. Ito yung ah base natin.
- 1:16:04Nagbawas tayo ng isang oxygen.
- 1:16:07Okay two yung original na nandito sa
- 1:16:10ITE. naging isa na lang ' ba? Ayan. So
- 1:16:13maglalagay daw ng word na hypo hypo
- 1:16:19chlorite.
- 1:16:21Okay.
- 1:16:23Paano kung nagdagdag ng isa? No instead
- 1:16:26of three we have four. No? So maglalagay
- 1:16:30daw ng word na per
- 1:16:34chlorate.
- 1:16:36Yan chlorate yung sinunod no?
- 1:16:42Na-gets niyo class nasundan? Okay. Ayan.
- 1:16:46So ang dami namang ime-memorize. Okay.
- 1:16:49[tawanan]
- 1:16:51Ano ganun talaga ano? Ayan yan yung
- 1:16:53ruling nila sa pagpapangalan no.
- 1:16:57So hypochlorite.
- 1:16:59Ayan. And then per chlorate. High po
- 1:17:03kapagka nagbawas tayo ng isa from
- 1:17:06chlorite
- 1:17:08no. And then ah
- 1:17:10per kapagka nagdagdag tayo ng nagdagdag
- 1:17:13tayo ng isa no from chlorate.
- 1:17:16Yan. Ito pa yung iba example no.
- 1:17:22Okay. Paano kung ano kung ah acid no?
- 1:17:27Ayan hindi na siya oxyan ions oxy acids
- 1:17:30na siya. Okay.
- 1:17:33So
- 1:17:34chlorus acid ito
- 1:17:38nagtanggal tayo ng oxygen may word na
- 1:17:40hypo
- 1:17:42hypochlorus acid.
- 1:17:45nagdagdag ng isang oxygen, we have per
- 1:17:49chloric acid, no?
- 1:17:55Ayan.
- 1:18:02Okay. Ah
- 1:18:05wala pa nga mer.
- 1:18:10Ayan. Okay. Okay. So anong sagot niyo?
- 1:18:12Um,
- 1:18:14sodium
- 1:18:15nitrate. Okay. Bakit hindi nitri?
- 1:18:19O kasi ano iyung nitrite is
- 1:18:22um no ano iyung nitri?
- 1:18:26Ah ba't ba't nitrate? Ba't hindi
- 1:18:28nitrite?
- 1:18:34O tapos bakit mali ito yung a no? Kasi
- 1:18:39ah ito mismo ano it's a polyatomic
- 1:18:43umm
- 1:18:45ah yun no. So hindi natin ah pwedeng
- 1:18:48gamitin to no yung may trioxide
- 1:18:52tapos ah hindi rin siya pwedeng gamitin
- 1:18:55na per nitrate no walang ganong ruling
- 1:18:59no
- 1:19:02okay
- 1:19:05what about this one plus para matapos na
- 1:19:08tayo d okay potassium cyanide no kasi
- 1:19:13ito ito ito ito ay cyanide No? Tapos ang
- 1:19:16charge nito is ano yung CN 'di ba?
- 1:19:21Is ah 1-us.
- 1:19:28O ito na. Umm
- 1:19:33o anong sagot niyo?
- 1:19:37A
- 1:19:39lithium chloride no?
- 1:19:44Ba't hindi hypo no? Kasi clo
- 1:19:48kung siya chlorate.
- 1:19:50Ayan
- 1:19:53kung kung mababa pa diyan doon tayo
- 1:19:55magkakaroon ng lithium hypochlorite.
- 1:20:00Okay ayan.
- 1:20:03So ano to? Ammonium
- 1:20:06iodide no? Hindi pwede yung may Roman
- 1:20:09numeral kasi hindi naman ah transition
- 1:20:12metal si ammonium no. Ayan.
- 1:20:17more complicated polyatomic
- 1:20:20ions. Ayan na.
- 1:20:23Meo mas komplikada daw. Okay. Inorganic
- 1:20:26ions can be formed no from more than
- 1:20:29three elements. The same method is used
- 1:20:32as before. Yan. Prefix can be used.
- 1:20:37Prepix by no can be used instead of
- 1:20:40hydrogen.
- 1:20:42So example is sodium bicarbonate.
- 1:20:45So may may bicarbonate na tayo. Okay.
- 1:20:51Ayan.
- 1:20:55Okay. Sige. So ito daw no. Ayan,
- 1:21:05sodium bicarbonate.
- 1:21:07Okay. Ayan na. Sige, mag-name na tayo.
- 1:21:13O, sige nga.
- 1:21:19potassium tapos may aluminum
- 1:21:23tapos may
- 1:21:25SO4
- 1:21:26na naka-open and close parenthesis.
- 1:21:30Anong sagot niyo? A potassium aluminum
- 1:21:36sulfate. Teka. Tama ba? Potassium 'to.
- 1:21:40Aluminum. 'Yung nasa loob po ay sulfate.
- 1:21:44Okay.
- 1:21:46Okay. Tama 'no? Potassium aluminium
- 1:21:48sulfate.
- 1:21:50Ah hindi pwede 'yung aluminum 3 Roman
- 1:21:53numeral 'no. Bawal 'to. Hindi siya
- 1:21:55transition metal. Ah hindi pwede 'yung B
- 1:21:58kasi nilagay niya sulfite.
- 1:22:02Tapos hindi tayo nagda-disulfate
- 1:22:06no. Ngayon kasi ano na siya eh
- 1:22:09polyatomic na siya no.
- 1:22:17What about this?
- 1:22:19Oh, naka-open and close parenthesis. Ha?
- 1:22:25Okay.
- 1:22:27Ah, tama ba? Sulfite ba 'to? Tingnan nga
- 1:22:30natin.
- 1:22:32SO4 ' ba? SO4 fate. SO3
- 1:22:37fight ' ba? Okay. So, tama. Calcium,
- 1:22:41hydrogen, sulfite.
- 1:22:45Okay. Bakit hindi per sulfate? Kasi
- 1:22:48hindi naman mas mataas pa no. Ayan.
- 1:22:51Bakit hindi hypo? Hindi naman tayo
- 1:22:53nagbawas na mas mababa sa three no.
- 1:22:56Ayan.
- 1:23:00Okay.
- 1:23:02Naming oxy acids. Ayan. Hydrogen first.
- 1:23:10Okay.
- 1:23:13ATE ions are changed to IC. IT ions are
- 1:23:17changed to OUS. Ayan.
- 1:23:21Yan practice pa ulit no. H2SO4
- 1:23:28anong sagot niyo?
- 1:23:31Basic ito eh. Sulfuric acid ba?
- 1:23:37Common acid. Ayan. Bakit hindi sulfurus?
- 1:23:42Sulfurious no? Acid no? Ayan. Kasi yung
- 1:23:46SO4
- 1:23:48ayan.
- 1:23:52Okay. Derive from sulfate and ion
- 1:23:56change with IC. No, binago kasi ginawang
- 1:23:59acid na siya. Ayan.
- 1:24:02Ito anong sagot ng klase? Sige nga. A
- 1:24:07no? Nitrus.
- 1:24:09Ba't hindi nitric?
- 1:24:11No, kasi dalawa lang yung oxygen niya
- 1:24:14no. Kaya nitrus.
- 1:24:17Ayan. Nitrus.
- 1:24:21From IT binago ginawang OUS kung ATE
- 1:24:26gagawin siyang IC pero kung IT gagawing
- 1:24:29US no?
- 1:24:34Ayan ito yung ginawa natin kanina.
- 1:24:43Okay. Ayun na. Tapos na class. Ito na
- 1:24:46yung lahat ng ginawa natin. Learning
- 1:24:48objectives. Nagpangalan tayo. Common
- 1:24:50versus systematic
- 1:24:52elements and ions write formulas
- 1:24:57no from names of ionic compounds.
- 1:25:016.4. Naming binary compounds and acids.
- 1:25:05Yan. Copyright. Okay.
- 1:25:09Okay. Question so far class.
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