Manganese is derived from pyrolusite ore, an impure manganese dioxide. In the procedure used to analyze a
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Manganese is derived from pyrolusite ore, an impure manganese dioxide. In the procedure used to analyze a pyrolusite ore for its MnO2 content, a 0.533 g sample is treated with 1.651 g oxalic acid (H2C2O4 · 2 H2O) in an acidic medium. Following this reaction, the excess oxalic acid is titrated with 0.1000 M KMnO4, 30.06 mL being required. What is the mass percent MnO2 in the ore?
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General Chemistry Principles And Modern Applications
ISBN: 9780132931281
11th Edition
Authors: Ralph Petrucci, Jeffry Madura, F. Herring, Carey Bissonnette
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