Mole Concept Worksheet
Explore the mole concept in chemistry with this Grade 7 worksheet covering atomic mass, Avogadro's number, and calculations.
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Mole Concept Review
Name:
Date:
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Read each question carefully and answer to the best of your ability. Show all your work for calculation problems.
1. What is the approximate value of Avogadro's number?
6.02 x 10^22
6.02 x 10^23
1.00 x 10^23
1.00 x 10^22
2. The atomic mass unit (amu) is approximately equal to the mass of which subatomic particle?
Electron
Proton
Neutron
Both proton and neutron
3. One mole of any substance contains particles.
4. The molar mass of an element is numerically equal to its expressed in grams per mole.
5. Explain in your own words what the 'mole concept' is in chemistry.
6. The atomic mass of an element is the weighted average mass of its isotopes.
True
False
7. If you have 3 moles of water (H₂O), how many water molecules do you have? (Atomic mass of H = 1 amu, O = 16 amu)
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