80. Solving a chemistry problem
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80. Solving a chemistry problem
1. A portion of perhydrol weighing 2.500 g was transferred to a 500 ml volumetric flask. For titration of 25.0 ml of the solution, 18.72 ml of 0.1 n. KMnO4 solution. Calculate the mass fraction (%) of H2O2 in perhydrol.
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