138. Solving a chemistry problem
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138. Solving a chemistry problem
89. What percentage of Fe2C2O4 does the sample contain if its weight is 0.2596 g and 44.77 cm3 of KMnO4 solution with C (1 / 5KMnO4) = 0.1000 mol / dm3 F = 1.156 is spent on oxidation?
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