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Molecular Formula Worksheet 11 Name: _________________ Date: _______ Period: ____ 1. Write the molecular formula of the following compound. A compound with an empirical formula of C 2OH4 and a molar mass of 88 grams per mole. 2. Write the molecular formula of the following compound. A compound with an empirical formula of C 4H4O and a molar mass of 136 grams per mole. 3. Write the molecular formula of the following compound. A compound with an empirical formula of CFBrO and a molar mass of 254 grams per mole. 4. Write the molecular formula of the following compound. A compound with an empirical formula of C 2H8N and a molar mass of 46 grams per mole. 5. What is the empirical formula of a molecule containing 65.5% carbon, 5.5% hydrogen and 29.0% Oxygen? 6. If the molar mass of the compound in problem 5 is 110 grams per mole, what is the molecular formula? 7. What is the empirical formula of a molecule containing 18.7% lithium, 16.3% carbon and 65.0% oxygen? 8. If the molar mass of the compound in problem 7 is 73 grams per mole, what is the molecular formula?