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Cambridge AS & A Level Chemistry

25.2Partition coefficients

Partition coefficients in Cambridge AS & A Level Chemistry: what the syllabus expects you to know, the learning objectives and how to practise.
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Learning objectives

What the syllabus expects you to be able to do.

  1. 25.2.1State what a partition coefficient, Kpc, is.
  2. 25.2.2Calculate and use Kpc for a solute in the same physical state in both solvents.
  3. 25.2.3Explain how the polarities of solute and solvents affect Kpc.

Lessons

  • Partition coefficients and solvent extraction

    40 min

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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Partition coefficients: sample question

1 mark

Which solute is expected to have the largest partition coefficient Kpc(hexane/water)?

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