Mole Relationships Worksheet
A Grade 9 Chemistry worksheet focusing on mole relationships, molar mass, and Avogadro's number.
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Mole Relationships
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Read each question carefully and answer to the best of your ability. Show all work for calculations.
1. What is the approximate value of Avogadro's number?
6.022 x 10^22
6.022 x 10^23
1.0 x 10^23
1.0 x 10^22
2. The molar mass of water (H2O) is approximately:
1 g/mol
16 g/mol
18 g/mol
20 g/mol
3. One mole of any substance contains particles.
4. The molar mass of an element is numerically equal to its atomic mass.
5. Calculate the molar mass of carbon dioxide (CO2). (Atomic mass of C = 12.01 g/mol, O = 16.00 g/mol)
6. How many moles are present in 36.0 grams of water (H2O)?
7. The mass of one mole of a substance is called its molar volume.
True
False
8. Avogadro's number can be used to convert between moles and the number of particles.
True
False
9. The image above shows a water molecule. If you have 1 mole of water, how many water molecules do you have?