I need corrections on Chemistry Questions, empirical formula and mass percent

Kal

New member
composition? This is the question, I have the answers, I need to know if they are right. Thank you

A 0.1888 sample of a hydrocarbon produces 0.6311 and 0.1507 in combustion analysis. Its molecular mass is found to be 158 . For this hydrocarbon, determine its

My answers for: Mass percent composition of Carbon- 91%
Mass percent composition of Hydrogen- .89%

Empirical Formula: C15H6O
Molecular Formula: C15H6O

Are any of these answers correct?

Thank you.
 
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