Chemistry › Section O · Other equilibria › Topic O.1
Precipitation and dissolution
Salts that are called insoluble still dissolve a little, and that little is governed by an equilibrium constant. The solubility product predicts how much of a salt dissolves, whether a precipitate will form when solutions are mixed, and how to keep an unwanted ion out of solution.
In this topic
- When a little is enough
- The solubility product, Ksp
- Molar solubility and Ksp
- Worked example: solubility from Ksp
- Worked example: Ksp from a measured solubility
- Comparing solubilities
- Predicting precipitation: Q versus Ksp
- Worked example: mixing two solutions
- Separating ions by selective precipitation
- The common-ion effect
- Common mistakes to avoid
- Key takeaways
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