Avogadro's Number Worksheet
Explore Avogadro's number and its applications in chemistry with this Grade 12 worksheet, covering molar mass, mole calculations, and conceptual understanding.
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Avogadro's Number Worksheet
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Read each question carefully and provide your answers in the spaces provided. Show all your work for calculation problems.
1. What is the value of Avogadro's number?
6.022 x 10^23 particles/mol
6.022 x 10^23 kg/mol
1.000 x 10^0 particles/mol
6.022 x 10^-23 particles/mol
2. What is the molar mass of water (H2O)? (Atomic masses: H=1.01 g/mol, O=16.00 g/mol)
17.01 g/mol
18.02 g/mol
1.01 g/mol
16.00 g/mol
3. One mole of any substance contains exactly particles.
4. The molar mass of an element is numerically equal to its in grams per mole.
5. Explain the significance of Avogadro's number in chemistry.
6. How many moles are there in 54.04 grams of water (H2O)? (Molar mass of H2O = 18.02 g/mol)
Match the term on the left with its definition on the right.
7. Mole
a. The mass of one mole of a substance
8. Avogadro's Number
b. 6.022 x 10^23 particles
9. Molar Mass
c. The SI unit for amount of substance
10. Calculate the number of atoms in 2.5 moles of Carbon (C).
11. What is the mass of 3.011 x 10^23 molecules of CO2? (Molar mass of CO2 = 44.01 g/mol)
