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Calculate the standard EMF of a cell inv...

Calculate the standard EMF of a cell involving cell reaction.
`Zn+2Ag^(+) to Zn^(++)+2Ag`
Given `E_(Zn//Zn)^(@)=0.76V, E_(Ag//Ag^(++))^(@)=-0.80V`

Text Solution

Verified by Experts

The cell can be represented as `Zn|Zn^(2+)||Ag^(+)|Ag`
`E_("cell")^(@)=underset((SRP))(E_(Ag)^(@))- underset((SRP))(E_(Zn)^(@))`
`=0.80-(-0.76)`
`=1.56V`.
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