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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: TheBlackBrainiac on January 08, 2019, 10:15:11 PM

Title: Combustion Analysis (Empirical/Molecular Formula)
Post by: TheBlackBrainiac on January 08, 2019, 10:15:11 PM

The combustion of 49.14 grams of a compound that contains only C, H, N, and O yields 84.49 grams of CO₂
and 27.65 grams of H₂O.
Another sample of the compound with a mass of 96.72 grams is found to contain 24.18 grams of O. What is the empirical formula of the compound?

Title: Re: Combustion Analysis (Empirical/Molecular Formula)
Post by: sjb on January 09, 2019, 02:04:39 AM

Any thoughts of your own? How many moles of carbon were there in the sample?