Nitrogen monoxide and oxygen react to form nitrogen dioxide.Consider the mixture of NO and O2 shown in the accompanyingdiagram. The blue spheres represent N, and the red onesrepresent O. (a) How many molecules of NO2 can be formed,assuming the reaction goes to completion? (b) What is the limitingreactant? (c) If the actual yield of the reaction was 75%instead of 100%, how many molecules of each kind would bepresent after the reaction was over?

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Q: balance

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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".