e.m.f. diagram for some ions is given as : `FeO_(4)^(2-)overset(E^(@)=+2.20V)rarrFe^(3+)overset(E^(@)=+0.77V)rarrFe^(2+)overset(E^(@)=-0.445V)(rarr)Fe^(0)` Datermine the value of `E_(FeO_(4)^(2-)//Fe^(2+))^(@)`.

e.m.f. diagram for some ions is given as : `FeO_(4)^(2-)overset(E^(@)=

1.	e.m.f. diagram for some ions is given as : `FeO_(4)^(2-)overset(E^(@)=+2.20V)rarrFe^(3+)overset(E^(@)=+0.77V)rarrFe^(2+)overset(E^(@)=-0.445V)(rarr)Fe^(0)` Datermine the value of `E_(FeO_(4)^(2-)//Fe^(2+))^(@)`.
Answer» Correct Answer - `1.84 V ;`

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e.m.f. diagram for some ions is given as : `FeO_(4)^(2-)overset(E^(@)=+2.20V)rarrFe^(3+)overset(E^(@)=+0.77V)rarrFe^(2+)overset(E^(@)=-0.445V)(rarr)Fe^(0)` Datermine the value of `E_(FeO_(4)^(2-)//Fe^(2+))^(@)`.

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