(9) What is the cell potential of the galvanic cell in question (1) ?
The cell potential is the difference between the reduction potentials of the electrodes:
(10) Assume that the half cell reactions are driven by an external current of 2A. If the current flows for 6 hours, how many grams of gold accumulate?
Current has units of Coulombs per second. Since the total time of current flow is given, the total number of Coulombs passing through the circuit can be found. From the number of Coulombs, the total number of electrons deposited can be calculated, which then determines the number of moles of metallic gold deposited. The mole ratio from equation (2) gives the number of moles of electrons required to form one mole of metallic gold.
