In the production of Zinc sulfide, 36.8 g of zinc is made to react with 19.4 g of sulfur. Zn + S = ZnS a. How many moles of ZnS is produced when sulfur is completely used up? b. How many grams of ZnS is produced when zinc is completely used up? c. Which is the limiting reagent? d. How many grams of the excess reagent is left?

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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".