# Empirical Molecular Formulas A Empirical Formulas Smallest whole

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Empirical & Molecular Formulas A. Empirical Formulas • Smallest, whole # ratio of atoms in a molecule Ex: Na. Cl, H 2 O, C 12 H 22 O 11 • not necessarily the actual formula for the compound Ex: CH 2 O C 6 H 12 O 6 B. Molecular Formulas • Actual formula for the compound

Empirical & Molecular Formulas Ex 1: Determine the empirical formula of the compounds with the following composition by mass: 10. 4% C, 27. 8% S and 61. 7% Cl

Empirical & Molecular Formulas Ex 2: Determine the empirical formula of the compounds with the following composition by mass: 21. 7% C, 9. 6% O and 68. 7% F.

Empirical & Molecular Formulas Ex. 3: Give the empirical formula of each of the following compounds if a sample contains: 40. 0% C, 6. 7% H and 53. 3% O by mass.

Empirical & Molecular Formulas Ex. 4: Give the empirical formula of each of the following compounds if a sample contains: 11. 66 g Iron and 5. 01 g Oxygen

Empirical & Molecular Formulas Ex. 5: What is the molecular formula of each of the following compounds? empirical formula CH molar mass = 78 g/mol

Empirical & Molecular Formulas Ex. 5: What is the molecular formula of each of the following compounds? empirical formula CH molar mass = 78 g/mol

Empirical & Molecular Formulas When the hydrated form of Li 2 Si. F 6 is heated, its mass decreases of 0. 4813 to 0. 3910 g. Determine the formula for the hydrate, and name the hydrate.

Empirical & Molecular Formulas When the hydrated form of Li 2 Si. F 6 is heated, its mass decreases of 0. 4813 to 0. 3910 g. Determine the formula for the hydrate, and name the hydrate.