Grams to Moles Conversions Worksheet

This worksheet provides practice problems for converting between grams and moles, essential for stoichiometry calculations in Grade 12 Chemistry.

Grade 12 Science ChemistryStoichiometryGrams to Moles Conversions

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Includes

Fill in the Blanks2 Short AnswerMultiple ChoiceTrue / False

Standards

HS-PS1-7

Topics

chemistrystoichiometrygrams to molesmolar massgrade 12

7 sections · Free to use · Printable

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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?