# Problem: Consider a galvanic cell that uses the reaction4H3O+ (aq) + 4I- (aq) + O2 (g) → 2I2 (s) 6H2O (l).Complete the following sentence: An increase in pH would...(Circle your final answer):i) increase the magnitude of the cell potential.ii) decrease the magnitude of the cell potential.iii) have no effect on the magnitude of the cell potential.

###### FREE Expert Solution

For this problem, we have to determine the effect of increasing pH to the magnitude of cell potential

• Recall that pH is the log of the concentration of H3O+ or H+ in the reaction. Higher pH, lower [H+]
• Upon inspection, H3O+ is part of the cathode reaction:

4H3O+ (aq) + 4I- (aq) + O2 (g) → 2I2 (s) 6H2O (l).

81% (406 ratings) ###### Problem Details

Consider a galvanic cell that uses the reaction

4H3O+ (aq) + 4I- (aq) + O2 (g) → 2I2 (s) 6H2O (l).

Complete the following sentence: An increase in pH would...

i) increase the magnitude of the cell potential.

ii) decrease the magnitude of the cell potential.

iii) have no effect on the magnitude of the cell potential.