Question

# Calculate the equilibrium electrode potential for Fe3+/Fe2+ redox system, if the initial concentration of Fe2+ is...

Calculate the equilibrium electrode potential for Fe3+/Fe2+ redox system, if the initial concentration of Fe2+ is of 0.1 mol/L and one third of Fe2+ is oxidized to Fe3+ at pH 1.

(eo(Fe3+/Fe2+) = 0.77 V)

The balanced reaction will be

The concentration of Fe(2+) will be 0.1 * 2/3 and concentration of Fe(3+) in the reaction which is 0.1 * 1/3

Hence the equilibrium electrode potential will be equal to 0.752 V

Note - Post any doubts/queries in comments section.

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