What is the standard reduction potential (E°) for Fe3+ → Fe? Given that: Fe2+ + 2e– → Fe; E_{\left(Fe\right)^{2 +} / Fe}^{o} = - 0 .47 \textrm{ } V Fe3+ + e– → Fe2+; E_{\left(Fe\right)^{3 +} / \left(Fe\right)^{2 +}}^{o} = + 0 .77 \textrm{ } V

Engineering

Chemistry

Laws of Chemical Combination

Question

What is the standard reduction potential (E°) for Fe³⁺ → Fe?

Given that:

Fe²⁺ + 2e^– → Fe;

$E_{{Fe}^{2 +} / Fe}^{o} = - 0 .47 V$

Fe³⁺ + e^– → Fe²⁺;

$E_{{Fe}^{3 +} / {Fe}^{2 +}}^{o} = + 0 .77 V$

.0.30 V

– 0.057 V

+0.057 V

+0.30 V

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