35. Решение задачки по химии №125111

2. Determine the mass fraction of potassium dichromate in the technical product if a sample of 0.125 g was taken for analysis and 0.002 mol of Fe2 solution was added to its solution, the excess of which was titrated using 10.2 ml of KMnO4 solution with a concentration of C1/2 = 0.080 mol/l .

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