Chemistry - Electrochemistry Question with Solution | TestHub

ChemistryElectrochemistryMiscellaneous/MixedEasy2 minPYQ_2020
ChemistryEasynumerical

The cell,Zn/Zn2+(1M)||Cu2+(1M)/Cu(Ecell0=1.10V)was allowed to be completely discharged at 298K. The relative concentration ofZn2+toCu2+Zn2+Cu2+is10x. The value ofxis:
(Take2.303RTF=0.059Round off your answer up to one decimal)

Answer:
37.00
Solution:

Ecell=0; when cell is completely discharged
Ecell=Ecell0-0.0592log[Zn2+][Cu2+]
0=1.1-0.0592log[Zn2+][Cu2+]
log[Zn2+][Cu2+]=2×1.10.059=37.3
`Zn2+Cu2+=1037.3=10x
x=37.3

Stream:NTA_ABHYASSubject:ChemistryTopic:ElectrochemistrySubtopic:Miscellaneous/Mixed
2mℹ️ Source: PYQ_2020

Doubts & Discussion

Loading discussions...