the foul odor of rancid butter is due largely to butanoic acid, a compound contaning oxygen, hyrdrogen and carbon. Combustion analysis of a 4.30g sample of butyric acid produced 8.59g CO2 and 3.52 g H2O. Determine the empircal formula for butyric acid.

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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".