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Cambridge AS & A Level Chemistry

23.2Enthalpies of solution and hydration

Enthalpies of solution and hydration in Cambridge AS & 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. 23.2.1Define enthalpy change of hydration and of solution.
  2. 23.2.2Construct an energy cycle linking enthalpy of solution, lattice energy and hydration enthalpies.
  3. 23.2.3Calculate with these energy cycles.
  4. 23.2.4Explain qualitatively the effect of ionic charge and radius on hydration enthalpy.

Lessons

  • Enthalpies of solution and hydration

    35 min

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Sample question

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

Enthalpies of solution and hydration: sample question

1 mark

Which ion has the most exothermic enthalpy change of hydration?

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