Small quantities of oxygen can be prepared in the laboratory by heating potassium chlorate, KCIO, (s). The equation for the reaction is 2 KCIO, - 2 KCI + 302 > Calculate how many grams of O,(g) can be produced from heating 80.2 g KCIO,(s).

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Q: Small quantities of oxygen can be prepared in the laboratory by heating potassium chlorate,…

A: Given: Mass of KCIO3 = 69.3 g Molar mass of KCIO3 = 122.55  g/mol Molar mass of O2 = 32.0 g/mol

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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".