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Mole Conversion Worksheet: Practice Problems and Answers

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This worksheet provides a series of problems focused on converting between grams and moles for various compounds, including water (H2O), carbon dioxide (CO2), and more. Each question includes the mass of the substance along with the appropriate molar mass for conversion, guiding users through the calculation process. Additionally, the worksheet includes answers for self-assessment. Ideal for chemistry students seeking to master mole calculations, it's an excellent resource for homework, review, or test preparation.

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Mole Conversion Worksheet: Practice Problems and Answers

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  1. MOLE CONVERSION WORKSHEET ANSWERS

  2. Convert 36 g of H2O to moles. __ 1 mol H2O __ 36 g H2O 2 mol H2O X ----------------- = 18 g H2O

  3. What is the mass of 0.071 mol CO2? 44 g CO2 _____ 0.071 molCO2 X ---------------- = 3.1 g CO2 _____ 1 mol CO2

  4. 1.) How many moles are in 144 g of carbon? 1 mol C ___ 144 gC X ---------------- = 12.0 mol C ___ 12 g C

  5. 2.) What is the mass of 5.0 moles of He? 4 g He ____ 5.0 mol He 20 g He X ---------------- = _____ 1 mol He

  6. 3.) How many moles of N2 are in 84.0 g of nitrogen gas? 1 mol N2 ____ 3.00 mol N2 84.0 g N2 X ---------------- = ___ 28 g N2

  7. 4.) What is the mass of 12.0 moles of O2? 32 g O2 ____ 384 g O2 12.0 mol O2 X ---------------- = ___ 1 mol O2

  8. 5.) How many moles of water molecules are in 117 g of water? 1 mol H2O ____ 6.50 mol H2O 117 g H2O X ---------------- = _____ 18 g H2O

  9. 6.) What is the mass of 7.25 moles of H2O2? 34 g H2O2 ______ 247 mol H2O2 7.25 mol H2O2 X ---------------- = ______ 1 mol H2O2

  10. 7.) How many moles of NaCl are in 87.0 g of NaCl? 1 mol NaCl _____ 1.49 mol NaCl 87.0 g NaCl X ---------------- = _____ 58.45 g NaCl

  11. 8.) What is the mass of 6.0 moles of NaOH? 40 g NaOH ______ 240 g NaOH 6.0 mol NaOH X ---------------- = _______ 1 mol NaOH

  12. 9.) How many moles of C12H22O11 are in 179 g of C12H22O11? 1 mol C12H22O11 _____ 0.523 mol C12H22O11 179 g C12H22O11 X ---------------- = _____ 342 g C12H22O11

  13. 10.) What is the mass of 3.5 moles of HC2H3O2? 60 g HC2H3O2 _______ 210 g HC2H3O2 3.5 mol HC2H3O2 X ---------------- = _______ 1 mol HC2H3O2

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