下载

3下载券

加入VIP
  • 专属下载特权
  • 现金文档折扣购买
  • VIP免费专区
  • 千万文档免费下载

上传资料

关闭

关闭

关闭

封号提示

内容

首页 AP Chemistry

AP Chemistry.pdf

AP Chemistry

xbeans
2010-07-10 0人阅读 举报 0 0 暂无简介

简介:本文档为《AP Chemistrypdf》,可适用于考试题库领域

AP®ChemistryFreeResponseQuestionsTheCollegeBoardisanotforprofitmembershipassociationwhosemissionistoconnectstudentstocollegesuccessandopportunityFoundedin,theassociationiscomposedofmorethan,schools,colleges,universities,andothereducationalorganizationsEachyear,theCollegeBoardservesoverthreemillionstudentsandtheirparents,,highschools,and,collegesthroughmajorprogramsandservicesincollegeadmissions,guidance,assessment,financialaid,enrollment,andteachingandlearningAmongitsbestknownprogramsaretheSAT®,thePSATNMSQT®,andtheAdvancedPlacementProgram®(AP®)TheCollegeBoardiscommittedtotheprinciplesofexcellenceandequity,andthatcommitmentisembodiedinallofitsprograms,services,activities,andconcernsForfurtherinformation,visitwwwcollegeboardcomCopyright©CollegeEntranceExaminationBoardAllrightsreservedCollegeBoard,AdvancedPlacementProgram,AP,APCentral,APVerticalTeams,APCD,Pacesetter,PreAP,SAT,StudentSearchService,andtheacornlogoareregisteredtrademarksoftheCollegeEntranceExaminationBoardPSATNMSQTisaregisteredtrademarkjointlyownedbytheCollegeEntranceExaminationBoardandtheNationalMeritScholarshipCorporationEducationalTestingServiceandETSareregisteredtrademarksofEducationalTestingServiceOtherproductsandservicesmaybetrademarksoftheirrespectiveownersFortheCollegeBoard’sonlinehomeforAPprofessionals,visitAPCentralatapcentralcollegeboardcomThematerialsincludedinthesefilesareintendedfornoncommercialusebyAPteachersforcourseandexampreparationpermissionforanyotherusemustbesoughtfromtheAdvancedPlacementProgram®Teachersmayreproducethem,inwholeorinpart,inlimitedquantities,forfacetofaceteachingpurposesbutmaynotmassdistributethematerials,electronicallyorotherwiseThispermissiondoesnotapplytoanythirdpartycopyrightscontainedhereinThesematerialsandanycopiesmadeofthemmaynotberesold,andthecopyrightnoticesmustberetainedastheyappearhereGOONTOTHENEXTPAGEINFORMATIONINTHETABLEBELOWANDINTHETABLESONPAGESMAYBEUSEFULINANSWERINGTHEQUESTIONSINTHISSECTIONOFTHEEXAMINATIONDONOTDETACHFROMBOOKPERIODICTABLEOFTHEELEMENTS()()()()()HLiNaKRbCsFrBeMgCaSrBaRaScY*LaAcTiZrHfVNbTaCrMoWMnTcReFeRuOsCoRhIrNiPdPtCuAgAuZnCdHg()()()§§§BAlGaInTlCSiGeSnPbNPAsSbBiOSSeTePoFClBrIAtNeArKrXeRnHe()()()()()()RfDbSgBhHsMtCePrNdPmSmEuGdTbDyHoErTmYbLuThPaUNpPuAmCmBkCfEsFmMdNoLr()()()()()()()()()()()*LanthanideSeries†ActinideSeries†§NotyetnamedGOONTOTHENEXTPAGESTANDARDREDUCTIONPOTENTIALSINAQUEOUSSOLUTIONAT°CHalfreactionE°()VFFCoCoAuAuClClOHHO(BrBrHgHgHg()()()())()gsgglleeeeeee→→→→→→→−−−−−−−−−−−−−−−−−−−→→→→→→→→Hg(AgAg(HgHg(FeFeIICuCuCuCuCuCuSneeeeeeeelslsss)))()()()eeeeeeeeesggssss−−−−−−−−→→→→−→−→−→−→SnSHHSHHPbPbSnSnNiNiCoCo(Tl()()()()()())TlTlCdCdCrCrFeFeCrCrZnZnMnMnAlAl()()()()()()()ssssssseeeeeee−→−→−→−→−→−→−→−−−−−−−−BeBeBeMgMg(NaNaCaCaSrSrBaBaRbRbKK−−−−−−−−→−→−→−→−→−→−→−→eeeeeeeesssssss())()()()()()(ssssee)()()−→−→−−−CsLiCsLiGOONTOTHENEXTPAGEADVANCEDPLACEMENTCHEMISTRYEQUATIONSANDCONSTANTSEvnmp=======energyvelocityfrequencyprincipalquantumnumberwavelengthmassmomentumulSpeedoflight,msPlanck’sconstant,JsBoltzmann’sconstant,JKAvogadro’snumbermolElectroncharge,coulombelectronvoltperatomkJmolchke=¥=¥=¥=¥=¥=EquilibriumConstants(weakacid)(weakbase)(water)(gaspressure)(molarconcentrations)KKKKKabwpcSHGETnmqcCEkApa����===========standardentropystandardenthalpystandardfreeenergystandardreductionpotentialtemperaturemolesmassheatspecificheatcapacitymolarheatcapacityatconstantpressureactivationenergy=rateconstant=frequencyfactorFaraday'sconstant,coulombspermoleofelectronsGasconstant,JmolKLatmmolKvoltcoulombmolK�====,RATOMICSTRUCTUREEhvcvpmEnn====¥lluu=hmjouleEQUILIBRIUMKKKabb===−−−−−−=×=×=−=−====−=−==−log,loglogloglog,log(),HAHAOHHBBOHHCpHHpOHOHpHpOHpHpAHApOHpHBBppwheremolesproductgasmolesreactantgasKKKKKKKKKKRTnwaabaabbpcn�DDTHERMOCHEMISTRYKINETICSDDDDDDDDDDDDDDDDSSSHHHGGGGHTSRTKRTKnEGGRTQGRTQqmcTCHTffffp���������������=========ÂÂÂÂÂÂ==productsreactantsproductsreactantsproductsreactantslnloglnlog�lnlnAAAAttktkt==lnlnkERTAa=ejGOONTOTHENEXTPAGEGASES,LIQUIDS,ANDSOLUTIONSPVnRTPnaVVnbnRTXXPPPPnmPVTPVTDmVukTmRTKEmKERTrrMTiKTiKMRTAabcPPAtotalAAtotalABCrmsffbb==============¥=¥==FHGIKJ=¥==(),wheremolesAtotalmolesKCpermoleculepermolemolarity,molessoluteperlitersolutionmolalitymolessoluteperkilogramsolventmolalitymolalityMMMM�uDDpOXIDATIONREDUCTIONELECTROCHEMISTRYQabcdIqtEERTnQEnQKnEcd=Æ====lnloglog,CDABwhereABCDCcellcellcellab�����PVTnDm=======pressurevolumetemperaturenumberofmolesdensitymassvelocityuuKEriKKQIqtEKrmsfbAabc==================rootmeansquarespeedkineticenergyrateofeffusionmolarmassosmoticpressurevan'tHofffactormolalfreezingpointdepressionconstantmolalboilingpointelevationconstantreactionquotientcurrent(amperes)charge(coulombs)time(seconds)standardreductionpotentialequilibriumconstantabsorbancemolarabsorptivitypathlengthconcentrationMp�Gasconstant,JmolKLatmmolKvoltcoulombmolKBoltzmann'sconstant,JKforHOKkgmolforHOKkgmolSTPCandatmFaraday'sconstant,coulombspermoleofelectronsatmmmHgtorrRkKKfb====¥======,��AP®CHEMISTRYFREERESPONSEQUESTIONSCopyright©byCollegeEntranceExaminationBoardAllrightsreservedVisitapcentralcollegeboardcom(forAPprofessionals)andwwwcollegeboardcomapstudents(forAPstudentsandparents)GOONTOTHENEXTPAGECHEMISTRYSectionII(Totaltimeminutes)PartATimeminutesYOUMAYUSEYOURCALCULATORFORPARTACLEARLYSHOWTHEMETHODUSEDANDTHESTEPSINVOLVEDINARRIVINGATYOURANSWERSItistoyouradvantagetodothis,sinceyoumayobtainpartialcreditifyoudoandyouwillreceivelittleornocreditifyoudonotAttentionshouldbepaidtosignificantfiguresBesuretowriteallyouranswerstothequestionsonthelinedpagesfollowingeachquestioninthebookletwiththepinkcoverDoNOTwriteyouranswersonthegreeninsertAnswerQuestionbelowTheSectionIIscoreweightingforthisquestionispercentAnswerthefollowingquestionsrelatingtothesolubilitiesoftwosilvercompounds,AgCrOandAgPOSilverchromatedissociatesinwateraccordingtotheequationshownbelowAgCrO(s)→←Ag(aq)CrO–(aq)Ksp=×–at°C(a)WritetheequilibriumconstantexpressionforthedissolvingofAgCrO(s)(b)Calculatetheconcentration,inmolL−,ofAg(aq)inasaturatedsolutionofAgCrOat°C(c)Calculatethemaximummass,ingrams,ofAgCrOthatcandissolveinmLofwaterat°C(d)AmolsampleofsolidAgNOisaddedtoaLsaturatedsolutionofAgCrOAssumingnovolumechange,doesCrO–increase,decrease,orremainthesameJustifyyouranswerInasaturatedsolutionofAgPOat°C,theconcentrationofAg(aq)is×–MTheequilibriumconstantexpressionforthedissolvingofAgPO(s)inwaterisshownbelowKsp=AgPO−(e)WritethebalancedequationforthedissolvingofAgPOinwater(f)CalculatethevalueofKspforAgPOat°C(g)ALsampleofsaturatedAgPOsolutionisallowedtoevaporateat°CtoafinalvolumeofmLWhatisAginthesolutionJustifyyouranswerAP®CHEMISTRYFREERESPONSEQUESTIONSCopyright©byCollegeEntranceExaminationBoardAllrightsreservedVisitapcentralcollegeboardcom(forAPprofessionals)andwwwcollegeboardcomapstudents(forAPstudentsandparents)GOONTOTHENEXTPAGEAnswerEITHERQuestionbelowORQuestionprintedonpageOnlyoneofthesetwoquestionswillbegradedIfyoustartbothquestions,besuretocrossoutthequestionyoudonotwantgradedTheSectionIIscoreweightingforthequestionyouchooseispercentFe(s)O(g)→FeO(s)fHD�=−kJmol–Ironreactswithoxygentoproduceiron(III)oxide,asrepresentedbytheequationaboveAgsampleofFe(s)ismixedwithLofO(g)atatmandK(a)Calculatethenumberofmolesofeachofthefollowingbeforethereactionbegins(i)Fe(s)(ii)O(g)(b)IdentifythelimitingreactantwhenthemixtureisheatedtoproduceFeO(s)Supportyouranswerwithcalculations(c)CalculatethenumberofmolesofFeO(s)producedwhenthereactionproceedstocompletion(d)Thestandardfreeenergyofformation,fGD�,ofFeO(s)is−kJmol–atK(i)Calculatethestandardentropyofformation,fSD�,ofFeO(s)atKIncludeunitswithyouranswer(ii)WhichismoreresponsibleforthespontaneityoftheformationreactionatK,thestandardenthalpyofformation,fHD�,orthestandardentropyofformation,fSD�JustifyyouranswerThereactionrepresentedbelowalsoproducesiron(III)oxideThevalueofHD�forthereactionis−kJpermoleofFeO(s)formedFeO(s)O(g)→FeO(s)(e)Calculatethestandardenthalpyofformation,fHD�,ofFeO(s)AP®CHEMISTRYFREERESPONSEQUESTIONSCopyright©byCollegeEntranceExaminationBoardAllrightsreservedVisitapcentralcollegeboardcom(forAPprofessionals)andwwwcollegeboardcomapstudents(forAPstudentsandparents)Thefirstorderdecompositionofacoloredchemicalspecies,X,intocolorlessproductsismonitoredwithaspectrophotometerbymeasuringchangesinabsorbanceovertimeSpeciesXhasamolarabsorptivityconstantof×cm–M–andthepathlengthofthecuvettecontainingthereactionmixtureiscmThedatafromtheexperimentaregiveninthetablebelowX(M)AbsorbanceTime(min)×–×–×–(a)Calculatetheinitialconcentrationofthecoloredspecies(b)CalculatetherateconstantforthefirstorderreactionusingthevaluesgivenforconcentrationandtimeIncludeunitswithyouranswer(c)Calculatethenumberofminutesittakesfortheabsorbancetodropfromto(d)CalculatethehalflifeofthereactionIncludeunitswithyouranswer(e)ExperimentswereperformedtodeterminethevalueoftherateconstantforthisreactionatvarioustemperaturesDatafromtheseexperimentswereusedtoproducethegraphbelow,whereTistemperatureThisgraphcanbeusedtodeterminetheactivationenergy,Ea,ofthereaction(i)Labeltheverticalaxisofthegraph(ii)ExplainhowtocalculatetheactivationenergyfromthisgraphSTOPIfyoufinishbeforetimeiscalled,youmaycheckyourworkonthispartonlyDonotturntotheotherpartofthetestuntilyouaretoldtodosoAP®CHEMISTRYFREERESPONSEQUESTIONSCopyright©byCollegeEntranceExaminationBoardAllrightsreservedVisitapcentralcollegeboardcom(forAPprofessionals)andwwwcollegeboardcomapstudents(forAPstudentsandparents)GOONTOTHENEXTPAGECHEMISTRYPartBTimeminutesNOCALCULATORSMAYBEUSEDFORPARTBAnswerQuestionbelowTheSectionIIscoreweightingforthisquestionispercentWritetheformulastoshowthereactantsandtheproductsforanyFIVEofthelaboratorysituationsdescribedbelowAnswerstomorethanfivechoiceswillnotbegradedInallcases,areactionoccursAssumethatsolutionsareaqueousunlessotherwiseindicatedRepresentsubstancesinsolutionasionsifthesubstancesareextensivelyionizedOmitformulasforanyionsormoleculesthatareunchangedbythereactionYouneednotbalancetheequationsExample:Astripofmagnesiumisaddedtoasolutionofsilvernitrate(a)Asolutionofcopper(II)sulfateisspilledontoasheetoffreshlypolishedaluminummetal(b)Dimethyletherisburnedinair(c)AMnitrousacidsolutionisaddedtothesamevolumeofaMsodiumhydroxidesolution(d)Hydrogeniodidegasisbubbledintoasolutionoflithiumcarbonate(e)Anacidicsolutionofpotassiumdichromateisaddedtoasolutionofiron(II)nitrate(f)Excessconcentratedaqueousammoniaisaddedtoasolutionofnickel(II)bromide(g)Asolutionofsodiumphosphateisaddedtoasolutionofaluminumnitrate(h)ConcentratedhydrochloricacidisaddedtoasolutionofsodiumsulfideAP®CHEMISTRYFREERESPONSEQUESTIONSCopyright©byCollegeEntranceExaminationBoardAllrightsreservedVisitapcentralcollegeboardcom(forAPprofessionals)andwwwcollegeboardcomapstudents(forAPstudentsandparents)GOONTOTHENEXTPAGEYourresponsestotherestofthequestionsinthispartoftheexaminationwillbegradedonthebasisoftheaccuracyandrelevanceoftheinformationcitedExplanationsshouldbeclearandwellorganizedExamplesandequationsmaybeincludedinyourresponseswhereappropriateSpecificanswersarepreferabletobroad,diffuseresponsesAnswerBOTHQuestionbelowANDQuestionprintedonpageBothofthesequestionswillbegradedTheSectionIIscoreweightingforthesequestionsispercent(percenteach)Inalaboratoryclass,astudentisgiventhreeflasksthatarelabeledQ,R,andSEachflaskcontainsoneofthefollowingsolutions:MPb(NO),MNaCl,orMKCOThestudentisalsogiventwoflasksthatarelabeledXandYOneoftheseflaskscontainsMAgNO,andtheothercontainsMBaClThisinformationissummarizedinthediagrambelow(a)WhenthestudentcombinedasampleofsolutionQwithasampleofsolutionX,aprecipitateformedAprecipitatealsoformedwhensamplesofsolutionsQandYwerecombined(i)IdentifysolutionQ(ii)Writethechemicalformulasforeachofthetwoprecipitates(b)WhensolutionQismixedwithsolutionR,aprecipitateformsHowever,noprecipitateformswhensolutionQismixedwithsolutionS(i)IdentifysolutionRandsolutionS(ii)WritethechemicalformulaoftheprecipitatethatformswhensolutionQismixedwithsolutionR(c)TheidentityofsolutionXandsolutionYaretobedeterminedusingonlythefollowingsolutions:MPb(NO),MNaCl,andMKCO(i)DescribeaproceduretoidentifysolutionXandsolutionY(ii)Describetheobservations

用户评价(0)

关闭

新课改视野下建构高中语文教学实验成果报告(32KB)

抱歉,积分不足下载失败,请稍后再试!

提示

试读已结束,如需要继续阅读或者下载,敬请购买!

文档小程序码

使用微信“扫一扫”扫码寻找文档

1

打开微信

2

扫描小程序码

3

发布寻找信息

4

等待寻找结果

我知道了
评分:

/13

AP Chemistry

VIP

在线
客服

免费
邮箱

爱问共享资料服务号

扫描关注领取更多福利