Problem: Menthol, the substance we can smell in mentholated cough drops, is composed of C, H, and O. A 0.1005-g sample of menthol is combusted, producing 0.2829 g of CO2 and 0.1159 g of H2O. What is the empirical formulafor menthol?If the compound has a molar mass of 156 g/mol, what is its molecular formula?

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FREE Expert Solution

Step 1: The reaction would be: 

CxHyOz + O2 → CO2 + H2O

The mass of C and H:

Mass C=0.2829 g CO2×1 mol CO244.01 g CO2×1 mol C1 mol CO2×12.01 g C1 mol C

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Problem Details

Menthol, the substance we can smell in mentholated cough drops, is composed of C, H, and O. A 0.1005-g sample of menthol is combusted, producing 0.2829 g of CO2 and 0.1159 g of H2O. What is the empirical formula
for menthol?

If the compound has a molar mass of 156 g/mol, what is its molecular formula?

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Our tutors have indicated that to solve this problem you will need to apply the Combustion Analysis concept. You can view video lessons to learn Combustion Analysis. Or if you need more Combustion Analysis practice, you can also practice Combustion Analysis practice problems.

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Based on our data, we think this problem is relevant for Professor Staff's class at UCSD.