Question: Iron ore is impure Fe 2 O 3 . When Fe 2 O 3 is heated with an excess of carbon (coke), metallic iron and

Iron ore is impure Fe₂O₃. When Fe₂O₃ is heated with an excess of carbon (coke), metallic iron and carbon monoxide gas are produced. From a sample of ore weighing 938 kg, 523 kg of pure iron is obtained. What is the mass percent Fe₂O₃ in the ore sample, assuming that none of the impurities contain Fe?

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