58. Solving a chemistry problem
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58. Solving a chemistry problem
3. Calculate the mass of H2C2O4 * 2H2O, which should be taken into a volumetric flask with a capacity of 500 ml, so that 20.25 ml of a KMnO4 solution with a concentration of 3.2800 g / l was used to titrate 25 ml of the resulting solution.
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