Consider a galvanic cell.?

Question

Consider a galvanic cell for the following balanced reaction:
6H+(aq) + 2Al(s) → 2Al+3(aq) + 3H2(g) E°cell = 1.66 V


A. Suppose at 25 degrees Celsius the H (+1) aqueous concentration is 0.1 M, the Al 3+ ion concentration is 1.0 M and the partial pressure of hydrogen gas is 2.0 atm. Calculate the overall emf of this cell.
B. Calculate the change in mass in grams of the aluminum electrode after the cell has supplied a constant current of 10.0 amps for 25.0 minutes..
C. Calculate the free energy change , delta G, for the reaction

Answer 1

A) Use Nernst eqn.

B) M = Zit

C) delta G = -RTlnE