Elemental analysis of the soot produced by a candle flame shows that it is 7.75% H and 92.3% C by mass. What is the empirical formula of this hydrocarbon?

Name: Elemental analysis of the soot produced by a candle flame shows that it is 7.75% H and 92.3% C by mass. What is the empirical formula of this hydrocarbon?
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Quizplus · Accepted Answer

The empirical formula is determined by the simplest whole number ratio of moles of each element. For 7.75% H and 92.3% C, the ratio is approximately 1:1, giving CH.

Elemental Analysis of the Soot Produced by a Candle Flame