Mole-Gram Conversion Worksheet
A Grade 12 Chemistry worksheet focusing on mole-gram conversions, including calculations of molar mass and conversion between moles and grams for various chemical compounds.
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Mole-Gram Conversion Practice
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Read each question carefully and provide your answers in the space provided. Show all your work for calculations. Use the periodic table to determine atomic masses.
1. Calculate the molar mass of the following compounds:
a) H₂O (Water)
b) CO₂ (Carbon Dioxide)
c) C₆H₁₂O₆ (Glucose)
2. Convert the following moles to grams:
a) 2.5 moles of NaCl is equal to grams.
b) 0.75 moles of H₂SO₄ is equal to grams.
c) 1.2 moles of Al(OH)₃ is equal to grams.
3. Convert the following grams to moles:
a) 50.0 grams of O₂ is equal to moles.
b) 125 grams of CaCO₃ is equal to moles.
c) 8.0 grams of CH₄ is equal to moles.
4. Which of the following represents the correct molar mass of ammonia (NH₃)?
14.01 g/mol
17.03 g/mol
3.02 g/mol
28.02 g/mol
5. A sample of an unknown compound contains 0.85 moles and has a mass of 144.5 grams. What is the molar mass of the compound?
Atomic masses (g/mol): H=1.01, C=12.01, N=14.01, O=16.00, Na=22.99, Cl=35.45, S=32.07, Al=26.98, Ca=40.08
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