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Question

One of the reactions that occurs in a blast furnace, where iron ore is converted to cast iron is as follows:
Fe2O3+3CO2Fe+3CO2
Suppose that 1.64×103 kg of Fe are obtained from 2.62×103 kg sample Fe2O3. Assuming that the reaction goes to completion, what is the percent purity of Fe2O3 in the original sample (rounded to the nearest integer)?

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