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What is the % of mn in ignited sample

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Reference no: EM131149501

Igniting MnO2 in air converts it quantitatively to Mn3O4 . a sample of pyrolusite has MnO2 80 % , SiO2 - 15 % and rest having water. The sample is heated in air to constant mass. what is the % of Mn in ignited sample .

Reference no: EM131149501

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