Topic B. Factors Affecting Solubility
Le Châtelier's principle governs
the response of a system in equilibrium when a stress is introduced. Some “stressors”
that affect solubility equilibria are presence of common ion, pH
and presence of a complexing agent.
Subtopic B.1. Common-Ion Effect
Le Châtelier's principle governs the response of a system in equilibrium when a stress is introduced. Some “stressors” that affect solubility equilibria are presence of common ion, pH and presence of a complexing agent.
The common-ion effect results when an ionic compound is mixed in a solution that contains any of its ions that is already at equilibrium.
Review Reading:
“The Common-Ion Effect” by Tung, E. et al. (2020)
This online resource discusses how common ion influences the solubility of an ion. Special emphasis on Example 17.1.3, which compares solubilities in water and in a solution with the common ion. Answer the self-test in this material to assess your understanding of the topic. Start reviewing by clicking the title.