124. Задачка по химии №012 457

371. Determine the molar concentration of the equivalent of sodium arsenite solution according to the following data: 1.0000 g of a standard steel sample with a mass fraction of manganese 1.00% is dissolved in acid and Mn2+, oxidized to MnO4-; the resulting solution was brought in a volumetric flask to 100 ml. For 25.00 ml of this solution, 32.40 ml of arsenite are consumed.

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