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Solubility Equilibria
Objectives:
1. Compare dissolution with precipitation.
2. Describe equilibria for aqueous solutions of ionic solids.
Key Terms:
dissolution precipitations solubility equilibrium solubility product
Notes: (17-1)
As we discussed earlier, ionic solids dissolve in polar solvents (water) due to the their charged ends. Since the ionic solid forms a lattice (repeating sequence of positive and negative ions) dissolution of the ionic solid is fairly consistent and predictable.
 | dissolution is the process in which an ionic solid dissolves in a polar solvent | ||
| saturation is the point where the maximum dissolution has taken place | ||
| precipitation is the regeneration of the ions in a solution | ||
| solubility equilibrium is the point where the rate of dissolution is equal to the rate of precipitation | ||
| The
solubility product represents the solid that is dissolved in solution
|
(itl.chem.ufl.edu/2041_f97/ change/C12F12.GIF)