Analysis of a gaseous hydrocarbon compound gives the following percent composition by
mass: 85.7% C and 14.3% H.
(a) Define empirical formula and molecular formula.
(b) Determine the empirical formula of the hydrocarbon.
(c)0.25 g of this compound occupies a volume of 100 mL at STP. Determine the molar
mass and the molecular formula of the hydrocarbon.
Answers: 3
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Analysis of a gaseous hydrocarbon compound gives the following percent composition by
mass: 85.7% C...
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