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Quick Moles
Calculations Practice

Show work for all of the following calculations. Place your answer in the blanks provided showing units and the correct number of significant figures.

  1. _________________________
    What is the molar mass of Al(ClO4)3?
  2. _________________________          _________________________
    You have a sample of NaCl with a mass of 36.2 g. How many moles of NaCl is in your sample? How many molecules?
  3. _________________________
    You have a sample of 2.12 mol H2O. How many grams of H2O do you have?
  4. _________________________
    What is the mass in grams of 6 billion trillion (6 × 1021) molecules of UF6?
  5. _________________________
    If you have 1.0 g of Na3P and 1.0 g NaCl, which sample has more atoms of Na? Justify your answer with a calculation.
This activity belongs with the Moles Group Activity.
Homework: Moles
Moles Practice Calculations
Last updated: Apr 08, 2013       Home