For each reaction below, the starting mass/volume of each reagent is provided as well as the final mass of product isolated. Calculate the theoretical and percent yield for each reaction. a. b. OH + MW 122 1.50 g Cl MW 141 d 1.21 g/mL 0.250 mL OH MW 60.1 7.40 g 1. PhMgBr MW 181 905 mg 2. HCI H3PO4 OH O MW 164 1.86 g Ph Ph MW 260 547 mg + H₂O

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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".