Question- For the following separates the whole reaction into half-reactions, balance the half reactions and combine to yield a balanced whole reaction. Compute the E° and pe° values at pH 7 (E7° and pe7°) for the net reaction.
(1) Fe2+ + NO3- = Fe(OH)3(s) + N2
(2) Fe2+ + SO42- = Fe(OH)3(s) + H2S
(3) Mn2+ + Fe(OH)3(s) = MnO2(s) + Fe2+
State your answer as a chemical formula.