Empirical and Molecular Formula Worksheet
Grade 10 Chemistry worksheet covering empirical and molecular formulas, calculations, and definitions.
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Empirical and Molecular Formula Worksheet
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Read each question carefully and provide the best answer. Show all your work for calculations.
1. Which of the following is the empirical formula for C6H12O6?
C6H12O6
CH2O
C2H4O2
CHO
2. The molecular formula is always a whole number multiple of the empirical formula.
True
False
3. The empirical formula represents the ratio of atoms in a compound.
4. To determine the molecular formula from the empirical formula, you need the of the compound.
5. A compound is found to contain 40.0% Carbon, 6.7% Hydrogen, and 53.3% Oxygen. Determine the empirical formula of the compound.
Match each term on the left with its definition on the right.
6. Empirical Formula
a. Shows the actual number of atoms of each element in a molecule.
7. Molecular Formula
b. The simplest whole-number ratio of atoms in a compound.
8. A compound has an empirical formula of CH2 and a molecular mass of 56.11 g/mol. What is its molecular formula?