Purification of Organic Compounds: Methods & Applications


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Which of the following purification methods involves heating the compound and allowing it to go directly from the solid phase to the gas phase, followed by condensation of the pure compound back to a solid upon cooling?

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1. Which of the following characteristics is vital when choosing a good solvent for a recrystallization?

2. Which physical property of compounds are you taking advantage of when purifying a liquid mixture by distillation?

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About This Quiz & Worksheet

Purifying organic compounds is an important aspect of chemistry. You will be tested on various kinds of purification methods, recrystallization and separating compounds.

Quiz & Worksheet Goals

The quiz covers:

  • Physical properties of compounds
  • A purification method where the compound is turned directly from a solid to a gas
  • A purification method that involves separating compounds with a stationary phase

Skills Practiced

  • Information recall - consult the understanding you've gained about solvents for recrystallization
  • Interpreting information - ensure that you can read information about purifying a liquid mixture through distillation and interpret it correctly
  • Knowledge application - use your knowledge to point out the easiest purification method for separating an organic acid and an organic base

Additional Learning

Supplement your knowledge of this subject by viewing the lesson titled Purification of Organic Compounds: Methods & Applications. This lesson includes:

  • The most commonly used techniques for purification
  • Five methods for purifying organic compounds
  • An example of a distillation apparatus