A galvanic cell is composed of these two half-cells, with the standard reduction potentials shown:             Zn2+(aq)  +  2 e-Zn(s)             -0.76 volt             Cd2+(aq)  +  2 e-Cd(s)             -0.40 volt     What is the standard free energy change (ΔGo) for the cell reaction of this galvanic cell?

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