Question

a galvanic cell consists of a ni2 / ni half-cell and a standard hydrogen electrode. if the ni2 / ni standard electrode functions as the anode, and the standard cell potential is 0.24 v, what is the standard reduction potential for the ni2 / ni half-cell?

Answer 1

The standard reduction potential for the Ni2+/Ni half-cell functioning as the anode with a standard cell potential of 0.24 V is -0.24 V.

Step-by-step explanation:

The question asks for the standard reduction potential of the Ni2+/Ni half-cell when it functions as the anode.

Given that the standard cell potential is 0.24 V and that the standard reduction potential of the standard hydrogen electrode (SHE) is 0.00 V by definition, we can calculate the standard reduction potential of the Ni2+/Ni half-cell. Because the Ni2+/Ni half-cell is the anode, it undergoes oxidation and its potential should be reversed when considering the reduction potential.

Thus the standard reduction potential for Ni2+/Ni half-cell is -0.24 V.