the molecular formula of hydrocarbon is to be determined by analyzing its combustion products.  a) the hydrocarbon burns completely, producing 7.2 g of water and 7.2 liters of CO2 at standard conditions. What is the empirical formula of the hydrocarbon?  b) Calculate the mass in grams of O2 required for the complete combustion of the sample of the hydrocarbon described in a. c) the molecular weight of the hydrocarbon is determined to be 56.1 amu. What is the molecular formula of the hydrocarbon?

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A:

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Q: combustion

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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".