Divide the molecular mass by the empirical formula mass to determine the whole number multiple (x). C. Example #2: What is the molecular formula of CH3O if its molar mass is 62 g/mol? 1. 4) C2H6O2. Objectives: • be able to calculate empirical and molecular formulas . Percent Composition and Molecular Formula Worksheet 1. 3) WO2. If the molar mass of the compound in problem 1 is 110 grams/mole, what’s the molecular formula? Write the empirical formula for the following compounds. 5) X39Y13. 1) C6H6. 9. A compound with a molecular mass of 46.0g/mol and an empirical formula of NO 2 Molecular Formula Worksheet Write the molecular formulas of the following compounds: 1) A compound with an empirical formula of C 2 OH 4 and a molar mass of 88 grams per mole. 2. Worksheets: Empirical Formula 1. It is a whole number multiple of the empirical formula. The relationship between a compound’s empirical and molecular formula can be written as: x(empirical formula) = molecular formula 1. 2) C8H18. Some of the worksheets for this concept are , Empirical and molecular formula work, Empirical molecular formulas student notes, Work 8 empirical formulas h o n o 4i, Empirical formula work, Empirical formula work, Empirical and molecular formula work, Calculating empirical and molecular … 6) A compound with an empirical formula of C2OH4and a molar mass of 88 grams per mole. 1) C6H6. 12. D. Example #3: Find the molecular formula for a compound with an empirical formula of C2H8N and a molecular mass of 46 grams per mole. SHOW WORK ON A SEPARATE SHEET OF PAPER. [A] CH2 [B] CH [C] C3H5 [D] C2H4 [E] … 3. A compound with a molecular mass of 70g/mol and an empirical formula of CH 2. b. 2. 6) A compound with an empirical formula of C2OH4 and a molar mass of 88 grams per mole. Empirical And Molecular Formula - Displaying top 8 worksheets found for this concept. SHOW WORK ON A SEPARATE SHEET OF PAPER. Empirical And Molecular Formula. 3. 10. Example #1: What is the molecular formula of a compound whose molar mass is 60.0 g/mol and empirical formula is CH4N? 2) C8H18. Empirical and Molecular Formula Worksheet. What’s the empirical formula of a molecule containing 65.5% carbon, 5.5% hydrogen, and 29.0% oxygen? 2) What is empirical formula of a compound which consists of 89.14% Au and 10.80% of O? 1) What is the empirical formula of a compound that contains 0.783g of Carbon, 0.196g of Hydrogen and 0.521g of Oxygen? Write the empirical formula for the following compounds. 3) WO2. Lesson Worksheet: Empirical and Molecular Formulas. To determine the molecular formula of a compound, you must know the compound’s molar mass. 4) C2H6O2. 2. Caffeine has the chemical formula C H N O 8 1 0 4 2. Calculate the empirical formula of a compound that is 85.6% C and 14.4% H (by mass). Write the empirical formula and name the compound. Molecular formula– a formula showing the types and numbers of atoms combined in a single molecule of a molecular compound. A compound is 21.20% Nitrogen, 6.06% Hydrogen, 24.30% Sulfur, and 48.45% Oxygen. Write the empirical formula and name the compound. A compound is 24.7% Calcium, 1.2% Hydrogen, 14.8% Carbon, and 59.3% Oxygen. B. Determine the empirical formula from the molecular formula: a) C 6 H 6: h) C 2 H 2: b) C 2 H 6: i) Na 2 SO 4: c) C 3 H 8: j) C 6 H 5 N: d) Fe 3 (CO) 9: k) P 4 O 10: e) C 2 H 4 O 2: l) Re 2 Cl 6: f) N 2 H 4: m) Se 3 O 9: g) CaBr 2: n) LiCl: 2. The empirical formula for the compound having the formula H2C2O4 is [A] C2H2 [B] CO2H [C] COH [D] C2O4H2 [E] COH2 2. Empirical and Molecular Formulas Worksheet . Empirical Formula . The relationship between a compound’s empirical and molecular formula can be written as: x(empirical formula) = molecular formula In this worksheet, we will practice defining, determining, and converting between a compound’s empirical and molecular formulas. A compound has an empirical formula ofN02 and a molar mass of 92.02 g/mol. A compound has an empirical formula of C2H30 and a molar mass of 172 g/mol. D Determine the molecular formula for each compound described. Empirical and Molecular Formula Worksheet. Empirical Formulas Worksheet, #1 Directions: Find the empirical formula and name for each of the following. 5) X39Y13. I I. Ibuprofen, a common headache remedy, has an empirical formula of C;H90 and a molar mass of approximately 215 g/mol. Worksheet: Calculating Empirical & Molecular Formulas 1. C2Oh4And a molar mass of the compound ’ s the empirical formula of C2H30 and a molar mass numbers atoms... 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