83. Решение задачки по химии №2

19. The potential of a platinum electrode relative to a calomel half-cell (1 N NCE) at 20 C in a solution of a mixture of FeCl3 and FeCl2 = 0.215 V. How much 0.05 N KIO3 solution must be added to this solution so that the potential increases by 100 mV if the initial volume of 0.2 N FeCl2 solution in the mixture was 100 ml?

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