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Educational worksheet on percent composition, empirical formulas, and molecular formulas.

Worksheet titled "Percent Composition, Empirical Formulas, and Molecular Formulas" with questions and exercises for calculating percent composition, empirical formulas, and molecular formulas.

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1. The percent composition of each element in the sample is:
- Carbon: 54.5%
- Hydrogen: 9.1%
- Oxygen: 36.4%

2. The number of moles of each element in the sample is:
- Carbon: 4.54 mol
- Hydrogen: 9.1 mol
- Oxygen: 2.275 mol

3. The compound's empirical formula is CH₂O.

4. The molar mass of the compound is 180.16 g/mol.

5. The molecular formula of the compound is C₆H₁₂O₆.

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