1.

If E_(Fe^(2+)//Fe)^(@)=0.441 and E_(Fe^(3+)//Fe^(2+))^(@)=0.771V the standard EMF of the reaction Fe+2Fe^(3+)to3Fe^(2+) will be

Answer»

1.212 V
0.111 V
0.330 V
1.653 V

Solution :The GIVEN CELL is `Fe|Fe^(2+)||Fe^(3+)|Fe^(2+)`
`E_(cell)^(@)=E_(Fe^(3+)//Fe^(2+))^(@)-E_(Fe^(2+)//Fe)^(@)=0.771V-(-0.441V)=1.212V`.


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