Consider the following unbalanced redox reactions. In each case, separate the whole reactions into half-reactions, balance the half reactions, and combine to yield a balanced whole reaction. Compute the net reduction potential (E°) and pε° values for the net reactions and indicate whether the reaction is spontaneous as written. The reduction potential for Fe(OH)_3(s)/Fe^2+ is -0.181 V and pε is -3.08.
a. Fe^2 + + NO_3 = Fe(OH)_3(s) + N_2
b. Mn^2 + + Fe(OH)_3(s) = MnO_2(s) + Fe^2+
Answers: 1
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