One method of purifying nitrogen oxide (NO) before it is released from a smoke stack is to react it with ammonia (NH3). The products created from this reaction are nitrogen gas and water. Consider the balanced equation below. Assuming there is excess NO, how many grams of H2O will be produced from 5.538 g of NH3? 4 NH3  +   6 NO   -->   5 N2   +   6 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".