The reduction potential of is +1.20V. The reduction potential of being reduced to Co is -.28V. This information is used to construct a galvanic cell.
What is the cell potential?
A. .92V
B. 1.48V
C. -.92V
D. -1.48V
B
The cell potential of a spontaneous galvanic cell must always be positive, allowing choices C and D to be immediately eliminated. Potential is calculated according to the following equation.