IOM 2016, Блиц — Задача 56

Olympiad of Metropolises, Moscow. Blitz Contest, September, 5 · 5 септември 2016 г.

Условие

A voltaic cell is made of Pb and Fe as well as of 1 M solutions of lead(II) nitrate and iron(II) sulfate. Using only the data given below

ReactionEo^{o}
Pb4+^{4+}(aq) + 4e → Pb(s)0.837 V
Pb4+^{4+}(aq) + 2e → Pb2+^{2+}(aq)1.800 V
Fe2+^{2+}(aq) + 2e → Fe(s)–0.439 V

determine the standard emf of the voltaic cell, assuming that most stable species are formed in the solution at each electrode. In the answer, give the integer value of emf*1000 (without units) (for example, 1800 instead of 1.800).

Решение

Внимание: Непълно решение

В архива няма официално решение на тази задача.

Оригинал в Архива: blitz.pdf