The ammonia (NH3) used to  make fertilizers for lawns and gardens is made by reacting nitrogen and hydrogen according to the reaction. N2 + H2 → NH3 a. How many moles of nitrogen are required to produced 12.5 moles of NH3 b. What is the mass in grams of hydrogen required to react with 2.50 moles of nitrogen? c. Determine the mass in grams of NH3 formed from 4.25  moles of nitrogen.

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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".