# Does standard electrode potential of a reaction depend on stoichiometric coefficients?

Take a reaction like this

$$\ce{Fe^3+ + 3e- -> Fe}$$

now will the standard electrode potential change if we take 2 moles of $\ce{Fe^3+}$ and 6 moles of electrons?

$$\ce{2Fe^3+ + 6e- -> 2Fe}$$

If you think of the Nernst equation, you'll see that: $$\Delta G° = -nFE°$$
Since $n$ corresponds to the number of electrons transferred, the ratio $\frac{\Delta G°}{n}$ remains constant, because any change in the stoichiometric coefficients will multiply both terms by the same value.