AP CHEMISTRY FINAL EXAM PRACTICE MULTIPLE CHOICE QUESTIONS AND ANSWERS

IllustratedcfAnatomycfofcfthecfHeadcfandcfNeckcf5thcfEditioncfFehrenbachcfTestcf
Stuvia.comcf-
Bank cfThecfMarketplacecftocfBuycfandcfSellcfyourcfStudycfMateri




AP CHEMISTRY FINAL EXAM PRACTICE
MULTIPLE CHOICE QUESTIONS AND ANSWERS

Whichcfofcfthecffollowingcfdiatomiccfspeciescfhascfacfbondcfordercfofcf2?
Li2
B2
N2
O2
F2cf-cfanswer--O2cf(O2cfhascfacfdoublecfbond)

Whichcfofcfthecffollowingcfhascfthecflargestcfbondcfdissociationcfenergy?
Li2
B2
N2
O2
F2cf-cfanswer--N2cf(becausecfN2cfhascfacftriplecfbond,cfmakingcfitcfhavecfthecflargestcfbondcfdissociationcfenergy)

ThecfgeometrycfofcfthecfSO3cfmoleculecfiscfbestcfdescribedcfascf-cfanswer--trigonalcfplanar

Incfwhichcfofcfthecffollowingcfprocesscfarecfcovalentcfbondscfbroken?
I2(s)cf→cfI2(g)
CO2(s)cf→cfCO2(g)
NaCl(s)cf→cfNaCl(l)
C(diamond)cf→cfC(g)
Fe(s)cf→cfFe(l)cf-cfanswer--C(diamond)cf→cfC(g)

Nitramide,cfN2H2O2,cfdecomposescfslowlycfincfaqueouscfsolution.cfThiscfdecompositioncfiscfbelievedcftocfoccurcfac
cordingcftocfthecfreactioncfmechanismcfabove.cfWhatcfiscfthecfratecflaw?cf-cfanswer--k[N2H2O2]/[H+]

Whichcfiscfacfprecipitationcfreaction?
(A)cfH2SeO4(aq)cf+cf2cfCl-(aq)cf+cf2cfH+(aq)cf→cfH2SeO3(aq)cf+cfCl2(g)cf+cfH2O(l)
(B)cfS8(s)cf+cf8cfO2(g)cf→cf8cfSO2(g)
(C)cf3cfBr2(aq)cf+cf6cfOH-(aq)cf→cf5cfBr-(aq)cf+cfBrO3-(aq)cf+cf3cfH2O(l)
(D)cfCa2+(aq)cf+cfSO42-(aq)cf→cfCaSO4(s)
(E)cfPtCl4(s)cf+cf2cfCl-(aq)cf→cfPtCl62-(aq)cf-cfanswer--Ca2+(aq)cf+cfSO42-(aq)cf→cfCaSO4(s)

Acfreactioncfwascfobservedcfforcf20cfdayscfandcfthecfpercentagecfofcfthecfreactantcfremainingcfaftercfeachcfdaycfwascfr
ecordedcfincfthecftablecfabove.cfWhichcfofcfthecffollowingcfbestcfdescribescfthecfordercfandcfthecfhalf-
lifecfofcfthecfreaction?

0cfdays-cf100%cfleft;cf3cfdays-50%;cf6cfdays-25%cf-cfanswer--Reactioncforder:cfFirstcfHalf-life:cf3

Thecfoxidationcfofcfiodidecfionscfbycfarseniccfacidcfincfacidiccfaqueouscfsolutioncfoccurscfaccordingcftocfthecfstoichiom
etrycfshowncfabove.cfThecfexperimentalcfratecflawcfofcfthecfreactioncfis:
Ratecf=cfk[H3AsO4]cf[I-]cf[H3O+]
WhatcfiscfthecfordercfofcfthecfreactioncfwithcfrespectcftocfI-?cf-cfanswer--1

Whichcfofcfthecffollowingcfmoleculescfhascfthecfshortestcfbondcflength?
N2
O2
Cl2
Br2
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, IllustratedcfAnatomycfofcfthecfHeadcfandcfNeckcf5thcfEditioncfFehrenbachcfTestcf
Stuvia.comcf-
Bank cfThecfMarketplacecftocfBuycfandcfSellcfyourcfStudycfMateri
I2cf-cfanswer--N2

Relativelycfslowcfratescfofcfchemicalcfreactioncfarecfassociatedcfwithcfwhichcfofcfthecffollowing?cf-cfanswer--
strongcfbondscfincfreactantcfmolecules

SodiumcfchloridecfiscfLEASTcfsolublecfincfwhichcfofcfthecffollowingcfliquids?
H2O
CCl4
HF
CH3OH
CH3COOHcf-cfanswer--CCl4

Oncfthecfbasiscfofcfthecfsolubilitycfcurvescfshowncfabove,cfthecfgreatestcfpercentagecfofcfwhichcfcompoundcfcancfbecfr
ecoveredcfbycfcoolingcfacfsaturatedcfsolutioncfofcfthatcfcompoundcffromcf90°Ccftocf30°C?cf-cfanswer--KNO3

Thecfcoolingcfcurvecfabovecfshowscfhowcfthecftemperaturecfofcfacfsamplecfvariescfwithcftimecfascfthecfsamplecfgoescft
hroughcfphasecfchanges.cfThecfsamplecfstartscfascfacfgas,cfandcfheatcfiscfremovedcfatcfacfconstantcfrate.cfAtcfwhichcfti
mecfdoescfthecfsamplecfcontaincfthecfmostcfliquid?cf-cfanswer--t4

Acfstudentcfpipettedcffivecf25.00-
millilitercfsamplescfofcfhydrochloriccfacidcfandcftransferredcfeachcfsamplecftocfancfErlenmeyercfflask,cfdilutedcfitcfwithc
fdistilledcfwater,cfandcfaddedcfacffewcfdropscfofcfphenolphthaleincftocfeach.cfEachcfsamplecfwascfthencftitratedcfwithcfa

cfsodiumcfhydroxidecfsolutioncftocfthecfappearancecfofcfthecffirstcfpermanentcffaintcfpinkcfcolor.cfThecffollowingcfresult

scfwerecfobtained.
VolumescfofcfNaOHcfSolution
FirstcfSample.....35.22cfmL
SecondcfSample.....36.14cfmL
ThirdcfSample.....36.13cfmL
FourthcfSamplecf.....36.15cfmL
FifthcfSample.....36.12cfmL
Whichcfofcfthecffollowingcfiscfthecfmostcfprobablecfexplanationcfforcfthecfvariationcfincfthecfstudent'scfresults?cf-
cfanswer--ThecfpipettecfwascfnotcfrinsedcfwithcfthecfHClcfsolution



Acf0.03cfmolcfsamplecfofcfNH4NO3(s)cfiscfplacedcfincfacf1cfLcfevacuatedcfflask,cfwhichcfiscfthencfsealedcfandcfheated.cf
ThecfNH4NO3(s)cfdecomposescfcompletelycfaccordingcftocfthecfbalancedcfequationcfabove.cfThecftotalcfpressurecfi
ncfthecfflaskcfmeasuredcfatcf400cfKcfiscfclosestcftocfwhichcfofcfthecffollowing?
cf(Thecfvaluecfofcfthecfgascfconstant,cfR,cfiscf0.082cfLcfatmcfmol-1cfK-1.)cf-cfanswer--3cfatm



Whichcfofcfthecffollowingcfpropertiescfgenerallycfdecreasescfacrosscfthecfperiodiccftablecffromcfsodiumcftocfchlorine?
cf-cfanswer--atomiccfradius



Thecfvolumecfofcfdistilledcfwatercfthatcfshouldcfbecfaddedcftocf10.0cfmLcfofcf6.00cfMcfHCl(aq)cfincfordercftocfpreparecfacf
0.500cfMcfHCl(aq)cfsolutioncfiscfapproximatelycf-cfanswer--110cfmL

Acfrigidcfmetalcftankcfcontainscfoxygencfgas.cfWhichcfofcfthecffollowingcfappliescftocfthecfgascfincfthecftankcfwhencfaddit
ionalcfoxygencfiscfaddedcfatcfconstantcftemperature?cf-cfanswer--
Thecfaveragecfspeedcfofcfthecfgascfmoleculescfremainscfthecfsame

Thecfelectron-
dotcfstructurecf(Lewiscfstructure)cfforcfwhichcfofcfthecffollowingcfmoleculescfwouldcfhavecftwocfunsharedcfpairscfofcfele
ctronscfoncfthecfcentralcfatom?
H2S
NH3
CH4
HCN
CO2cf-cfanswer--NH3
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