1. Ammonia reacts with diatomic oxygen to form nitric oxide and water vapor: 4NH3 + 502 ----> 4NO + 6H2O When 30.0 g NH3 and 40.0 g O2 are allowed to react, which is the limiting reagent? And find the theoretical yield of Nitric Oxide ( NO) 2. Which of the following has the greatest mass? Show the calculations which justifies your choice A) 7.75 x 1022 molecules of 02 B) 2.00 g of 02 C) 0.0625 mol of 02 D) All of the above have the same mass.

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Q: ОН

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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".