Question

An electrolytic cell contains a pair of inert metal electrodes in a solution containing 1.00 M nickel(II) sulfate at pH = 0.00.

Hint: Recall that pH = -log10[H+].

Write the half reactions and their reduction potentials(Eo) for the possible electrolysis products

What product will form at pH =0.00 when current is applied

The pH of the solution is gradually increased until the electrolysis product changes. What is the new product and at what pH does this change occur?

Hint: Assume that the changing pH has no effect on nickel(II) sulfate concentration.

Answer 1