What is the pH in the cathode for the following galvanic cell made from the following two half reactions? The initial concentration of gold ion is 2.2x10-3 M, the initial concentration of permanganate is 5.01 M, and the Ecell is 0.15 V. Assume the temperature is 298K.
Au3+(aq) + 3e- → Au(s) E° = 1.52 V
MnO4-(aq) + 4H+(aq) 3e- → MnO2(s) + 2H2O(l) E° = 1.70 V
