Explain a voltaic cell is constructed with a mg/mg2

Reference no: EM13261637

A voltaic cell is constructed with a Mg/Mg2+ (Eo = -2.370 V) half-cell and the Au/Au3+ (Eo = +1.500 V) half-cell. Which statement is correct for the spontaneous reaction?

a. Eocell = -3.870 V.
b. The reaction occurring at the cathode is: Au3+ (aq) + 3e- ? Au (s).
c. The reaction occurring at the anode is: Au (s) ? Au3+ (aq) + 3e-.
d. The overall cell reaction is: 2Au (s) + 3Mg2+ (aq) ? 2Au3+ (aq) + 3Mg (s).

Reference no: EM13261637

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