CHEM 103 LAB EXAM 2 WITH CORRECT ANSWERS RATED A+ GUARANTEED PASS

CHEM 103 LAB EXAM 2 WITH
CORRECT ANSWERS RATED A+
GUARANTEED PASS
Thek_____kofkakchemicalkreactionkrefersktokthekratekofkthekreaction.k-kCORRECTkANSWERSkkinetics



Listkthekfourkfactorskthatkcontrolkkineticskofkakchemicalkreaction.k-
kCORRECTkANSWERSkTheknaturekofkthekreactionkitself,kthekconcentrationkofkthekreactants,kthektem


perature,kandkthekpresencekofkakcatalysts



Whatkcolorkiskthekpermanganate?k-kCORRECTkANSWERSkpurple



Whatkcolorkiskthekoxalateksolution?k-kCORRECTkANSWERSkcolorless



Whatkcolorkchangekdokyoukseekinkthekratekofkreactionklabkwhenkmonitoringkthekchemicalkreactionk
betweenkthekoxalatekandkpermanganate?k-
kCORRECTkANSWERSkThekcolorkwillkchangekfromkakpurplekandkfadektokpink,kwhichkwillkfadektokakpea


ch-orange,kwhichkwillkfadektokakpalekyellow,kwhichkwillkfadektokcolorless



Whatkhappensktokthekreactionkratekwhenkyoukreducekthekamountkofkthekreactants?k-
kCORRECTkANSWERSkThekreactionkwillkbekslowerkthanktheknormalkreactionkbecausektherekwillkbekle


sskcollisionskoccurring,kcausingkthekamountkofksuccessfulkcollisionsktokbeklesskandkthekreactionkrate
ktokbekless




Whatkhappensktokthekreactionkratekwhenkyoukincreasekthektemperaturekofkakreaction?k-
kCORRECTkANSWERSkTheknumberkofkcollisionskhappeningkinkthekreactionkincreaseskandkthekamou


ntkofkkinetickenergykincreases,kcausingkthekratekofkthekreactionktokbekfaster

, Whatkhappensktokthekreactionkratekwhenkyoukusekakcatalyst?k-
kCORRECTkANSWERSkThekcatalystklowerskthekenergykneededkforkactivation,kcausingkthekratekofkthek


reactionktokbekfaster.



Whatkiskakcatalyst?k-
kCORRECTkANSWERSkchemicalskthatkincreasekthekratekofkakreaction,kbutkareknotkusedkupkorkchange


dkbykthekreaction



WhatkiskthekoxidationkstatekofkcopperkinkthekcompoundkCuCl?k-kCORRECTkANSWERSkCu+



WhatkiskthekoxidationkstatekofkcopperkinkthekcompoundkCuCl2k-kCORRECTkANSWERSkCuk2+



Whatkiskthekrolekofksodiumksulfitek(Na2SO3)kinkthekreactionktokproducekCuClkfromkCuCl2kandkNa2S
O3?k-kCORRECTkANSWERSkSodiumksulfitekiskthekreducingkagentkinkthiskreaction



Thekamountkofkproductkyoukexpectktokgetkinkakreactionk-kCORRECTkANSWERSktheoreticalkyield



WhatkwillkhappenkifkthekproductkCuClkcomeskinkcontactkwithkairkwhilekyoukarekcarryingkoutkthekste
pskinkthekprocedure?k-
kCORRECTkANSWERSkThekCuClkcouldkeasilykundergokankoxidationkreactionkifkitkcomeskintokcontactk


withkoxygenkwhichkiskinkthekair,ksokwekmustkbekcarefulkcarryingkoutkthekprocedurektokpreventkthekr
eactionkofkunstablekCu+



Whykiskitkespeciallykimportantktokreadkahead,kbekprepared,kandkhavekallkthekwashingksolutionskrea
dyktokusekbeforekstartingkthekfiltrationkofkCuCl?k-
kCORRECTkANSWERSkOncekthekfiltrationkandkwashingkiskbegun,kitkcannotkbekinterruptedkorkwetkCu


ClkwillkbecomekexposedktokairkwhichkwillkcausekthekoxidationkofkCuCl.kItkiskimportantktokbekprepare
dksokthiskdoesknotkoccur.