When 10.1 g of NH3 was reacted with excess C6H5 Cl in the reaction below, 11.5 g of NH4Cl were obtained. What was the percent yield of NH4 Cl? C6H5 Cl + 2 NH3 C6H5NH₂ + NH4 Cl → Your Answer: 72.3 %

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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".