Pure aluminum (Al) metal reacts with hydrochloric acid (HCl) to produce aluminum chloride (AlCl3) and hydrogen (H2) gas. 2 Al  +  6 HCl  →  2 AlCl3  + 3 H2   If the expected mass of AlCl3 to be formed is 3.5 g, what should be the initial mass of the pure aluminum metal? If the actual mass of AlCl3 produced is 3.1 g, what is the percentage yield of the

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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".