Grams to Moles Conversions Worksheet
This worksheet provides practice problems for converting between grams and moles, essential for stoichiometry calculations in Grade 12 Chemistry.
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Grams to Moles Conversions
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Read each question carefully and show all your work. Use the molar masses from the periodic table (rounded to two decimal places) for your calculations. Remember that 1 mole = molar mass in grams.
1. To convert from grams to moles, you must divide by the .
2. The unit for molar mass is .
3. One mole of any substance contains particles (Avogadro's number).
4. How many moles are in 25.0 grams of water (H₂O)?
5. Calculate the number of moles in 100.0 grams of calcium carbonate (CaCO₃).
6. What is the molar mass of sodium chloride (NaCl)?
23.00 g/mol
35.45 g/mol
58.45 g/mol
70.90 g/mol
7. If you have 3.0 moles of CO₂, what is its mass in grams?
14.67 g
44.01 g
132.03 g
440.1 g
8. The molar mass of an element is numerically equal to its atomic mass.
True
False
9. A chemist needs 0.50 moles of glucose (C₆H₁₂O₆) for an experiment. What mass of glucose should the chemist measure out in grams?
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