Iron reacts with oxygen in the following reaction:  4Fe(s) + 3 O2(g) ---> 2Fe2O3(s) if we begin with 4.50 g of O2: a) calculate the mass in grams of Fe is required for the complete reaction. b) calculate the theoretical yield of Fe2O3 in grams. c) if 4.85 g of Fe2O3 are actually obtained, what is the percent yield?

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".