3. 4NH, + 50, –→ 4NO + 6H,O If 3 moles NH, and 6 moles O, are placed in a closed tank and allowed to react to completion which 3 substances will be present when the reaction stops? How many moles of each substance? 4. Ca(OH), + Na,Co, → 2NaOH + CaCO, 50g calcium hydroxide and 50g sodium carbonate are reacted. How many grams sodium hydroxide will be made?

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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".