Balanced Equation: 2KClO3->3O2+2KCl.  d) How many molecules of oxygen gas were collected? e) What is the percent purity of the original potassium chlorate sample?

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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".