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ZIMSEC A-Level Chemistry

6.4.2.2Distribution between phases

Distribution between phases in ZIMSEC A-Level Chemistry: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic22 practice questions1 lesson

Learning objectives

What the syllabus expects you to be able to do.

  1. 6.4.2.2.1Explain the term partition coefficient.
  2. 6.4.2.2.2Calculate a partition coefficient for a solute in the same molecular state in the two solutions.
  3. 6.4.2.2.3Explain solvent extraction.

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.

Distribution between phases: sample question

1 mark

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

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