Combustion of a 34.8 mg sample of benzaldehyde, which contains only carbon,
hydrogen and oxygen, produced 101 mg of CO2 and 17.7 mg of H2O.
(a) What was the mass of carbon and hydrogen in the sample?
(1) Assuming that the original sample contained only carbon, hydrogen and
oxygen. What was the mass of oxygen in the sample?
(c) What was the mass percentage of oxygen in the sample?
(d) What is the empirical formula of benzaldehyde?
(c) Benzaldehyde has a molar mass of 106.12g/mol. What is the molecular formula?
In Chemistry
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Asked by Cordeltam on 26th July, 2021
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