What is the ΔG° (kJ/mol) for a spontaneous (voltaic) cell that uses the following half-reactions:
Al+3 (aq) + 3 e- → Al (s) E° = −1.66
Mn2+ (aq) + 2 e- → Mn (s) E° = −1.18
A. −278 B. −232 C. −140 D. −46.3 E. 46.3
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