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Grade 10 Moles & Molar Mass Worksheet with Answers
Grade 10 (US) · Year 11 (UK) · Class 10 (India) · Science
Unit 3: Chemical ReactionsThe MoleNGSS HS-PS1-7
Calculating molar mass and converting between grams and moles. This free high school worksheet has 12 questions and a full answer key. Print it or save it as a PDF — every answer is checked by code, not guessed.
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Practice Sheetaethelsystems.comMoles & Molar Mass
Grade 10 · Science
Name
Class
Date
Learning goal: The Mole · NGSS HS-PS1-7
Directions: Read each question carefully and write your answer on the line. Use the diagram to help you.
What is the molar mass of CH₄ (methane)? (C = 12, H = 1)
Answer: 16 g/mol
RememberChemistry tool kit
- 1
What is the molar mass of MgO (magnesium oxide)? (Mg = 24, O = 16)
- 2
What is the molar mass of H₂O (water)? (H = 1, O = 16)
- 3
What is the molar mass of C₆H₁₂O₆ (glucose)? (C = 12, H = 1, O = 16)
- 4
What is the molar mass of CaCO₃ (calcium carbonate)? (Ca = 40, C = 12, O = 16)
- 5
What is the molar mass of O₂ (oxygen gas)? (O = 16)
- 6
How many moles are in 149 g of KCl? (K = 39, Cl = 35.5)
- 7
What is the molar mass of NaOH (sodium hydroxide)? (Na = 23, O = 16, H = 1)
- 8
What is the mass of 0.25 mol of H₂SO₄? (H = 1, S = 32, O = 16)
- 9
How many moles are in 8 g of O₂? (O = 16)
- 10
What is the mass of 3 mol of C₆H₁₂O₆? (C = 12, H = 1, O = 16)
- 11
What is the molar mass of H₂SO₄ (sulfuric acid)? (H = 1, S = 32, O = 16)
- 12
How many moles are in 220 g of CO₂? (C = 12, O = 16)
★ Challenge corner for fast finishers
A ball is thrown straight up. What is its speed at the very top?
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Free printable worksheets with answer keys · aethelsystems.com/worksheets/science/10/molar_mass
Answer key — Moles & Molar Mass (Grade 10)
- 1.40 g/mol
- 2.18 g/mol
- 3.180 g/mol
- 4.100 g/mol
- 5.32 g/mol
- 6.2 mol
- 7.40 g/mol
- 8.24.5 g
- 9.0.25 mol
- 10.540 g
- 11.98 g/mol
- 12.5 mol
- ★zero (for an instant)
Answer key (click to show)
- 1.40 g/mol
- 2.18 g/mol
- 3.180 g/mol
- 4.100 g/mol
- 5.32 g/mol
- 6.2 mol
- 7.40 g/mol
- 8.24.5 g
- 9.0.25 mol
- 10.540 g
- 11.98 g/mol
- 12.5 mol
- ★zero (for an instant) (challenge corner)
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