Use the following balanced equation for problems 1-5. Molar masses are given below. 2 As 3 H2 2 AsH3 150. kcal + + molar masses 74.92 g 2.02 g 77.95 g How many moles of arsenic, As, are required to react with 25.00 moles of H2? A. 50.00 mol В. 25.00 mol O C. 16.67 mol D. 8.33 mol

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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".