Calculate the mass (g) of silver chloride (molar mass = 143.4 g/mol) formed when 174 g of silver sulfide (molar mass = 247.9 g/mol) reacts with excess hydrochloric acid: Ag2S(s) + HCl(aq) → AgCl(s) + H2S(g) [unbalanced]

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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".