Calculate ΔG° for the Reaction of Iron(II) Ions with One

Multiple Choice

Calculate ΔG° for the reaction of iron(II) ions with one mole of permanganate ions. MnO₄⁻(aq) + 8H⁺(aq) + 5e⁻ ⇄ Mn²⁺(aq) + 4H₂O(l) E° = 1.51 V
Fe³⁺(aq) + e⁻ ⇄ Fe²⁺(aq) E°= 0.77 V

A) −71.4 kJ
B) −286 kJ
C) −357 kJ
D) −428 kJ
E) None of these choices are correct.