In the determination of the mno2 content of an ore a 05261, Chemistry

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In the determination of the mno2 content of an ore a 05261

In the determination of the MnO2 content of an ore, a 0.5261 g of it was treated with 0.7049 g of Na2C2O4 in an acidic medium. After the reaction went to completion, 30.47 mL of 0.02160 M KMnO4 was needed to react with excess oxalate. Calculate the % MnO2 in ore.

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Chemistry: In the determination of the mno2 content of an ore a 05261

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