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The standard potentials at pH=0 for the couples Fe2+/Fe and Fe3+/Fe2+ are -0.44V and 0.77V, respectively....

The standard potentials at pH=0 for the couples Fe2+/Fe and Fe3+/Fe2+ are -0.44V and 0.77V, respectively. Should we expect Fe2+ to disproportionate in a deaerated acidic aqueous solution? Explain briefly.

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Answer #1

Here they can gave reduction potentials.

Fe+2/ Fe = -0.44V

Fe+3/Fe+2 =0.77V

As per electro chemical series the less reduction potential has undergoes corrosion undergoes oxidation.

high reduction potential act as cathode does not undergoes corrosion and the reduction takes place.

Oxidation means the adding of oxygen.

Reduction means the removal of oxygen.

In both the reactions Fe+2 is involved but in there is different situations.

In Fe+2/ Fe, Fe +2 gains oxygen

In Fe+3/ Fe+2 it removes oxygen undergoes reduction.

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