Worksheet: Mole Fractions

In this worksheet, we will practice calculating the molar amount of each component in a solution or mixture as a fraction of the total number of moles.

Q1:

What is the mole fraction of HNO3 in a concentrated solution of nitric acid (68.0% HNO3 by mass)?

Q2:

What is the mole fraction of 0.710 kg of sodium carbonate, NaCO23, in 10.0 kg of water?

  • A0.0710
  • B0.120
  • C0.295
  • D0.0119
  • E0.418

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