Question

How many grams of Fe2O3 are required to completely react with 3.0 moles of CO2 in the following reaction? Fe2O3. + 3CO. ---> 2Fe + 3CO2

Answer 1

159.7 grams Fe2O3

Explanation:

The balanced equation tells us that CO, not CO2, reacts with Fe2O3. The answer below assumes that CO, was intended in the phrase "react with 3.0 moles of CO2."

Fe2O3 + 3CO ---> 2Fe + 3CO2

React with 3.0 moles of CO.

The equation states we need 3 moles of CO for every one mole of Fe2O3 to have a balanced reaction. The molar mass of Fe2O3 is 159.7 grams/mole, so we'd need 159.7 grams of Fe2O3.

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If the statement was meant to read "produce 3.0 moles of CO2:

Produce 3.0 Moles of CO2

We would still only need one mole of Fe2O3, so the answer is trhe same as above: 159.7 grams of Fe2O3.