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Cu-2e^(-)rarrCu^(2+),E^(@)=-0.347V Sn-...

`Cu-2e^(-)rarrCu^(2+),E^(@)=-0.347V`
`Sn-2e^(-)rarrSn^(2+),E^(@)=+0.143V`
The standard EMF of the cell constructed with these electrodes is

A

`+0.66V`

B

`-0.066V`

C

`+0.490V`

D

`-0.82V`

Text Solution

Verified by Experts

The correct Answer is:
C
SOP=-SRP,
then `E=E_(C(SRP))-E_(A(SRP))`
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