Predicting the Formation of a Precipitate:
Qsp vs. Ksp
Qsp = Ksp : When a solution becomes saturated, no more solute will
dissolve, and the solution is called ìsaturated.î There
will be no changes that will occur.
Qsp > Ksp : Precipitates will form until the solution becomes
saturated.
Qsp< Ksp : Solution is unsaturated, and no precipitate will form.
The solubility product constant, Ksp, can be compared to Qsp to understand the characteristics of a solution with respect to forming a precipitate.
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