0722. Solving a chemistry problem
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DESCRIPTION
0722. Solving a chemistry problem
2. Calculate the % MnO2 content in pyrolusite if a 0.400 g sample was treated with dilute H2SO4 containing 0.600 g of H2C2O4 and the excess H2C2O4 was titrated with 26.26 ml of 0.1000 N KMnO4.
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