Sloichiometry: Mole to Mass Problems Mg +2HCI → MgClz +2 H2 1. a. How many grams of HCl are consumed by the reaction of 3.75 moles of magnesium? D. What is the mass in grams of Mg needed when 4.0 moles of HCl is used in the reaction'?

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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".