47. Решение задачи по химии №004 740

3. A sample of manganese(II) nitrate hexahydrate was dissolved in water to give 200.0 ml of solution. For titration of 10.00 ml of the resulting solution, 13.50 ml of an EDTA solution with a molar concentration of 0.0500 mol/l were used. Calculate the mass fraction of manganese in the sample in%.

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