# chem

One of the reactions that occurs in a blast furnace, where iron ore is converted to cast iron, is below.
Fe2O3 + 3 CO 2 Fe + 3 CO2
Suppose that 1.86 103 kg of Fe are obtained from a 5.98 103 kg sample of Fe2O3. Assuming that the reaction goes to completion, what is the percent purity of Fe2O3 in the original sample?

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1. This is exactly the same process as in your previous problem. The only difference is that instead of given a reactant and you calculate the product, in this case you are given the product and you must calculate the reactant. By the way you need to find your arrow key. --> or ==> or >>>

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