Find the empirical AND molecular formulas given the percent compositions or masses. SHOW YOUR WORK

Empirical/Molecular Formula Practice Worksheet Directions: - questions to Find the empirical AND molecular formulas given the percent compositions or masses. SHOW YOUR WORK to receive full credit. 1) 26.4 % Carbon 3.3 % Hydrogen 70.3 % Oxygen Molar Mass: 91.0 g/mol Empirical Formula: Molecular Formula 2) 81.8 grams Carbon 18.2 grams Hydrogen Molar Mass: 132.0 g/mol Empirical Formula: Molecular Formula: 3) 20.2% Sodium 37.6 % Sulfur 42.2 % Oxygen Molar Mass: 682.8 g/mol Empirical Formula: Molecular Formula: 4) 8.81 g Carbon 91.2 g Chlorine Molar Mass: 1362.5 g/mol 5) Determine the empirical and molecular formula of a compound composed of 18.24 g Carbon, 0.51 g Hydrogen, and 16.91 g Fluorine has a molar mass 562.0 g/mol. Empirical Formula: Molecular Formula