1. A 2.168 gram sample of an organic compound containing C, Hand O is analyzed by combustion analysis and 5.607 grams of CO2 and1.148 grams of H2O are produced. In a separate experiment, themolar mass is found to be 136.2 g/mol. Determine the empiricalformula and the molecular formula of the organic compound.
2.A 6.210 gram sample of an organic compoundcontaining C, H and O is analyzed by combustion analysis and10.34 grams of CO2 and3.388 grams of H2O are produced.
In a separate experiment, the molar mass is found to be132.1 g/mol. Determine the empirical formula andthe molecular formula of the organic compound.
3.A 0.5079 g sample of a pure solublebromide compound is dissolved in water, and all ofthe bromide ion is precipitated asAgBr by the addition of an excess of silvernitrate. The mass of the resulting AgBr is foundto be 0.9007 g.
What is the mass percentage of bromine in theoriginal compound?
