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Moles and molar mass worksheet

Students find molar mass from the periodic table, convert between grams and moles and use Avogadro's number to count particles. Items include multiple choice, fill in, matching, ordering and sorting for grade 10 chemistry.

By Edform · Chemistry · Grade 10 · Published Nov 3, 2026 · New

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Questions

  1. Use H = 1.01 and O = 16.00. What is the molar mass of water, H2O?
  2. How many particles are in one mole of any substance?
  3. Which step converts grams of a substance to moles?
  4. The molar mass of CO2 is 44.01 g/mol. What does this mean?
  5. Use Na = 22.99 and Cl = 35.45. Type the molar mass in g/mol.
  6. Water has a molar mass of 18.02 g/mol. Type the mass in grams.
  7. CO2 has a molar mass of 44.01 g/mol. Type the number of moles.
  8. Use 6.02 x 10²³ atoms per mole. Choose the correct numbers.
  9. Put the steps in order to find the number of molecules in a given mass of a compound.
  10. Match each substance to its molar mass. Use H = 1.01, C = 12.01, O = 16.00, Na = 22.99, Cl = 35.45.

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