How do you get the percentage composition of ibuprofen with respect to #C,H,N.O#?

1 Answer
anor277
Jan 20, 2017

How else but by measurement?

Explanation:

In order to get the percentage composition of #"ibuprofen"#, we would perform a combustion analysis, and the combustion gases of an accurately weighed mass, carbon dioxide and water, would be shunted to a gas chromatograph for analysis. We would get percentages for carbon, and hydrogen, which added up to LESS than 100%. The balance would be assumed to be oxygen.

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