Grade 12 Chemistry: Mole Relationships
This worksheet covers fundamental concepts of mole relationships, including molar mass, Avogadro's number, and stoichiometry calculations for Grade 12 Chemistry students.
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Grade 12 Chemistry: Mole Relationships
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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 mass of one mole of water (H₂O)?
1.00 g
18.02 g
36.04 g
6.022 x 10²³ g
2. How many atoms are in one mole of oxygen gas (O₂)?
6.022 x 10²³ atoms
1.204 x 10²⁴ atoms
3.011 x 10²³ atoms
32.00 atoms
3. Avogadro's number states that one mole of any substance contains representative particles.
4. The molar mass of a compound is the sum of the of all the atoms in its chemical formula.
5. Calculate the molar mass of glucose (C₆H₁₂O₆). Show your work.
6. How many moles are present in 50.0 grams of calcium carbonate (CaCO₃)? Show your work.
7. One mole of any gas at STP (Standard Temperature and Pressure) occupies a volume of 22.4 liters.
True
False
8. The empirical formula represents the actual number of atoms in a molecule.
True
False
Calculate the molar mass for each of the following compounds. Show all your steps.
9. Sodium Chloride (NaCl)
10. Sulfuric Acid (H₂SO₄)