69. Solving a chemistry problem
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69. Solving a chemistry problem
2. A 2.32 g sample of formic acid is diluted with water in a 100 ml volumetric flask. For titration of 10.0 ml of a dilute solution, 7.2 ml of a titrant with a concentration of C (KOH) = 0.150 mol/l was used. Calculate the mass fraction of formic acid in the initial solution.
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