The common ion effect
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Intros
Examples
Lessons
- Recall the use of the common-ion effect to change the solubility of a saturated solution.
A student has a saturated solution of AgCl, which is in equilibrium with its ions.AgCl (s) Ag+ (aq) + Cl- (aq)
What will adding the following salts to the saturated solution do to the solubility equilibrium?
Explain your answer.- Pb(NO3)2
- Na2S
- AgNO3
- KCl
- Apply the common ion effect to suggest ways of changing the solubility of a saturated solution.
A student has a saturated solution of lead chloride, with the precipitate in equilibrium with its aqueous ions.PbCl2 Pb2+ (aq) + 2Cl- (aq)
What compounds could be added to have the following effects on the PbCl2 solution?