Quiz 5: Determining Empirical Formula of a Hydrocarbon, Quizzes of Chemistry

Download Quiz 5: Determining Empirical Formula of a Hydrocarbon and more Quizzes Chemistry in PDF only on Docsity! CHM 1045 Spring 2008 Quiz 5 Name (print)___________________ Show your work for complete (and partial) credit. Report your answers to the correct number of significant figures, and use units where appropriate. A hydrocarbon is a molecular compound that contains only carbon and hydrogen. An example is hexane, which has the molecular formula C6H14. When combusted in oxygen, the hydrocarbon's carbon is converted to carbon dioxide and the compound's hydrogen is converted to water. When 39.06mg of a (different) hydrocarbon was combusted in excess oxygen, 132.0mg of carbon dioxide and 27.02mg of water formed. What is the empirical formula for the hydrocarbon? You must show your work. Partial credit can be earned by calculating moles. Compound/element CO2 O2 H2O Molar mass (g/mol) 44.009 37.9988 18.015