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The standard electrode potential for the...

The standard electrode potential for the reactions,
`Ag^(+)(aq)+e^(-) rarr Ag(s)`
`Sn^(2+)(aq)+2e^(-) rarr Sn(s)`
at `25^(@)C` are `0.80 ` volt and `-0.14 ` volt, respectively. The `emf`of the cell `Sn|Sn^(2+)(1M)||Ag^(+)(1M)Ag` is `:`

A

`0.66 `volt

B

`0.80 ` volt

C

`1.08` volt

D

`0.94` volt

Text Solution

Verified by Experts

The correct Answer is:
4
`E_(cell)=E_(cell)^(@)-(0.0591)/(2)log.([Zn^(2+)])/([Ag^(+)]^(2))" "=0.8-(-0.14)-(0.0591)/(2)log.(1)/(1^(2))=0.94V.`
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