Chapter6:AdvancedChemicalEquations6.3NeutralizationReactions6.4.1SingleReplacementReactionsLearningOutcomesAfterviewingthisvideoyouareexpectedtobeabletodescribehowacidsandbasesreactandidentifyconjugatebasesandconjugateacidsexplainmetathesisreactionsandhowlowsolubilityproductdrivesthemclassifyelectrolytesaccordingly•Thesearereactionsinwhichanacidreactswithabasetoproduceasaltandwaterandideallyas...
Chapter5:NomenclatureofInorganicCompounds5.4AcidsandBases5.4.1Acids5.4.2Bases5.4.3RelationshipsbetweenKaandKbLearningOutcomesAfterviewingthisvideoyouareexpectedtobeabletocomprehendsalthydrolysisanddemonstratewhysolutionsofdifferentpHareformed.understandtheconceptsofKaandKbandtheirrelationshipandapplythemincalculations.•Theacid-basepropertiesofsaltsdependontheirrespectivecationsandanions.•Ther...
Chapter5:NomenclatureofInorganicCompounds5.4AcidsandBases5.4.1Acids5.4.2Bases5.4.3RelationshipsbetweenKaandKbLearningOutcomesAfterviewingthisvideoyouareexpectedtobeabletoappreciatebases,whentheydissolveinwater,producehydroxideionsandhaveapHgreaterthan7insolution.identifybasesfromtheirstructuralformulae.differentiatebetweenweak,strongandsuperbases.answerquestionsrelatingtobasicstrength,pH,concen...
Chapter5:NomenclatureofInorganicCompounds5.4AcidsandBases5.4.1Acids5.4.2Bases5.4.3RelationshipsbetweenKaandKbLearningOutcomesAfterviewingthisvideoyouareexpectedtohaveunderstoodthedifferencebetweenBrønstedandLewisacidsandbases.thatacidsdissociatetoformproton(s)andtheirconjugatebase.thataciddissociationconstantsindicatehowmanyprotonsareacidicinamoleculeandthecorrespondingstrengthoftheacid.•Most...
Chapter4:ChemicalBonding(StructureofCompounds)4.2.4MetallicBonding4.2.4.1MetallicBonding4.2.4.2HydrogenBonding4.2.4MetallicBondingAfterwatchingtoday’svideo,yououghttobeabletoExplainindetailwhatmetallicbondingisandwhytheelectron-seamodelfailstoincludemanymetallicproperties.Appreciatewhymetalatomscanbepackedindifferentfashionse.g.face-centredcubic,body-centredcubicandhexagonal-closepacking.State...
Chapter4:ChemicalBonding(StructureofCompounds)4.2.3CovalentBondingLearningOutcomesAfterwatchingthisvideo,youshouldbeabletoDescribecovalentbondinginfulldetailgivingexamples.Explainthedifferencebetweensigma()andpi()bondsinorganiccompounds.Discusswhynon-metalsandtheircompoundswithothernon-metalsformcovalentbonds.Understandwhybonddissociationenergiesvary,dependingonthecompoundandthebondinginvol...
Chapter4:ChemicalBonding(StructureofCompounds)4.1IonicBonding4.2.1Ionic(Electrovalent),CovalentandCoordinateBonding4.2.2IonicBondinginDetailLearningOutcomesAfterwatchingthisvideo,youshouldbeabletoIdentifyanddescribethedifferencebetweenmetallic,ionic,covalent.coordinateandhydrogenbonding.Understandwhichtypesofcompoundionicbondingwillbepresentin.ExplainthestabilityofioniccompoundsviaBorn-Haberdia...
Chapter4:ChemicalBonding(StructureofCompounds)4.1OxidationNumbersandValencyLearningOutcomesAfterwatchingthisvideo,youshouldbeabletoFindouttheoxidationstate(ornumber)ofanyelementinaparticularcompoundbyapplyingredoxrules.Determinetheoxidisingandreducingagentsinanyredoxreaction.Balanceredoxreactions,includinghalf-equationsusingtheknowledgeyouhavegainedinthissection.SyllabusContentSyllabusContentHi...
Chapter3:PeriodicClassificationoftheElements3.3.4GroupXVIII–TheNobleGasesLearningOutcomesAfterwatchingthisvideo,youshouldbeabletoUnderstandandappreciatehowthephysicalandchemicalpropertiesofGroupXVIIIelementschangegoingdowneachgroup.DescribetheusesofelementsandcompoundstructureinGroupXVIII.Comprehendasatomicnumberincreases,factorslikedensityandpackingofatomsmaychange,whichwillalsoaffectmeltinga...
Chapter3:PeriodicClassificationoftheElements3.3IndividualClassificationofAlkalineEarthElements,Chalcogens,HalogensandNobleGases3.3.2GroupXVI-TheChalcogens3.3.3GroupXVII-TheHalogens•Thehalogens(fromtheGreekhalosandgennao,meaning“saltformers”)arenon-metals.•Themeltingandboilingpointsincreasewithincreasingatomicnumber.Fluorine(paleyellow)andchlorine(yellow-green)aregasesat25C,bromine(red-bro...
TianjinUniversityHealthSciencesPlatformGeneralChemistryMid-CourseExaminationAnswersDuration:2hoursCalculatorsarepermittedandthePeriodicTableisprovided.Pleaseansweronseparatesheets.Theexaminationissplitinto4sectionsasperthecoursecontent.IntroductiontoGeneralChemistry1.Thisquestionisaboutthethreestatesofmatter.a.Explainthethreestatesofmatterandtheirindividualproperties.b.Changesofstatescomeaboutw...
TianjinUniversityHealthSciencesPlatformGeneralChemistryMid-CourseExaminationDuration:2hoursCalculatorsarepermittedandthePeriodicTableisprovided.Pleaseansweronseparatesheets.Theexaminationissplitinto4sectionsasperthecoursecontent.IntroductiontoGeneralChemistry1.Thisquestionisaboutthethreestatesofmatter.a.Explainthethreestatesofmatterandtheirindividualproperties.b.Changesofstatescomeaboutwheneith...
ExtraProblemsforChapter8–FromCollegeChemistry,page9811.1Thevaporpressureofpurewaterat28°Cis28.35torr.Computethevaporpressureofasolutioncontaining68gofcanesugar,C12H22O11,in1kgofwater.Ans.28.25torr11.2At30°C,purebenzene(C6H6)hasavaporpressureof121.8torr.Dissolving15.0gofanon-volatilesolutein250gofbenzeneproducedasolutionhavingavaporpressureof120.2torr.Whatistheapproximatemolarmassofthesolute?...
ExtraProblemsforChapter7–FromCollegeChemistry,page585.1Thevaporpressureofwaterat25°Cis23.8torr.Expressthisin(a)atm,(b)kPa.Ans.(a)0.0313atm,(b)3.17kPa5.2Chlorinegasisevolvedattheanodeofacommercialelectrolysiscellattherateof3.65dm3/min,atatemperatureof647°C.Onitswaytotheintakepumpitiscooledto63°C.Calculatetherateofintaketothepumpassumingthepressurehasremainedconstant.Ans.1.33dm3/min5.3Whatist...
ExtraProblemsforChapter6–FromCollegeChemistry,page191A1.5276-gsampleofCdCl2wasconvertedtometalliccadmiumandcadmium-freeproductsbyelectrolysis.Theweightofthemetalliccadmiumwas0.9367g.IfAr(Cl)=35.453u,whatisAr(Cd)?Ans.112.4u2Howmany(a)gramsofH2S,(b)molesofHandofS,(c)gramsofHandofS,(d)moleculesofH2Sarecontainedin0.400molH2S?Ans.(a)13.63gH2S,(b)0.800molH,0.400molS,(c)0.806gH,13.83gS,(d)2.41×1023m...
ExtraProblemsforChapter5,fromCollegeChemistry,page124Problems1Writetheformulasfortheconjugatebasesofthefollowingacids:(a)HCN,(b)HCO3-,(c)N2H5+,(d)CH3CH2OHAns.(a)CN-,(b)CO32-,(c)N2H4,(d)CH3CH2O-2Writetheformulasfortheconjugateacidsofthefollowingbases:(a)CH3COOH,(b)HCO3-,(c)C5H5N,(d)N2H5+.Ans.(a)CH3C(OH)2+,(b)H2CO3,(c)C5H5NH+,(d)N2H62+3Considerthereaction,CO2(g)+OH-(aq)HCO3-(aq).Accordingtowhic...
ExtraProblemsforChapter4–FromCollegeChemistry,page90-9110.1Determinetheoxidationnumberoftheitalicizedelementin(a)K4P2O7;(b)NaAuCl4;(c)Na5HV10O28;(d)ICl;(e)OF2;(f)Ba2XeO6;(g)Ca(ClO2)2.Ans.(a)+5,(b)+3,(c)+5,(d)+1,(e)+2,(f)+8,(g)+3.10.2Balancethefollowingequations(acidicaqueoussolutions):(a)Sn(s)+O2(aq)+HCl(aq)SnCl2(aq)+H2O(l)(b)CuS(s)+HNO3(aq)Cu(NO3)2+S(s)+NO(g)+H2O(l)(c)FeCl2(aq)+H2O2(aq)+H...
ExtraProblemsforChapter2,fromCollegeChemistry,page58Problems1Whenaphotonofwavelengthλ=400nmstrikesaCstarget,anelectronisejected.CalculatethekineticenergyoftheelectronifthemaximumwavelengthtoobtainaphotoelectronfromCsis660nm.Ans.1.22eV2IthasbeenfoundthatI2(g)moleculesaredissociatedintoatomsonabsorptionoflightwithλ499.5nm.IfonephotoncarriesenoughenergytodissociateI2,computethedissociationener...
ExtraProblemsforChapter1–FromCollegeChemistry,page81.1Thecolouroflightdependsonitswavelength.Redlighthasawavelengthontheorderof7.8×10-7m.Expressthislengthinmicrometres,innanometres,andinangstroms.Ans.0.78mm,780nm,7800Å1.2Theblueiridescenceofbutterflywingsisduetostriationsthatare0.15μmapart,asmeasuredbyanelectronmicroscope.Whatisthisdistanceincentimetres?Howdoesthisspacingcomparewiththewavel...
