In: Chemistry
Consider the following standard reduction potentials,
For the voltaic cell reaction below, calculate the Fe2+ concentration that would be needed to produce a cell potential equal to 0.16 V at 25 oC when the pH of the solution is 13.00, [Fe3+] = 0.50 M and [H2O2] = 0.35 M.
Half Reaction |
Eo (V) |
Fe3+(aq) + e‒ → Fe2+(aq) |
0.77 |
H2O2(aq) + 2 e‒ → 2 OH‒(aq) |
0.88 |
2 Fe2+(aq) + H2O2(aq) → 2 Fe3+(aq) + 2 OH‒(aq)