how many grams of CO are needed to react with an excess of Fe2O3 to produce 209.7gFe? Fe2O3(s) + 3CO(g) => 3CO2(g) + 2Fe(s)

Answer 1

Almost the same procedure as the last problem you posted. After you have mols, convert to grams by grams = mols x molar mass.
Post your work if you get stuck and explain in detail why you don't know what to do next.

Answer 2

234