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Chemistry, 27.10.2020 14:00 Shom2095

Manganese can be extracted from its ore, hausmannite, by heating with aluminum. 3Mn3O4+ 8Al → 4Al2O3+ 9Mn
23 tonnes of ore is processed, and 200.0 kg of manganese obtained. Calculate the percentage by mass of Mn3O4 in the ore.

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