Calculate E°_cell and Indicate Whether the Overall Reaction Shown Is

Multiple Choice

Calculate E°_cell and indicate whether the overall reaction shown is spontaneous or nonspontaneous. Co³⁺(aq) + e⁻ ⇄ Co²⁺(aq) E° = 1.82 V
MnO₄⁻(aq) + 2H₂O(l) + 3e^- ⇄ MnO₂(s) + 4OH⁻(aq) E° = 0.59 V
Overall reaction:
MnO₄⁻(aq) + 2H₂O(l) + 3Co²⁺(aq) → MnO₂(s) + 3Co³⁺(aq) + 4OH⁻(aq)

A) E° _cell = -1.23 V, spontaneous
B) E° _cell = -1.23 V, nonspontaneous
C) E° _cell = 1.23 V, spontaneous
D) E° _cell = 1.23 V, nonspontaneous
E) E° _cell = -0.05 V, nonspontaneous