Additional data needed for this question can be found in Appendix 11.
(a) Determine Ezn2++ /Zn (at 298 K) for a half-cell in which [Zn2+]=0.25 mol dm-3.
(b) Calculate the reduction potential for the halfreaction:
[VO]2+(aq) + 2H+(aq) + e – ⇌ V3+(aq) + H2O(l)
if the ratio of the concentrations of [VO]2+ : V3+ is 1: 2 and the pH of the solution is 2.2.
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