CHEM 102 Chapter Notes - Chapter 14: Molar Concentration, Molality, Supersaturation
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9 Mar 2016
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The solubility of a substance is the amount of the substance that will dissolve in a given amount of solvent. Entropy is a measure of energy randomization or energy dispersal in a system. Interactions are of similar magnitude, so the two substances are soluble in each other in all proportions they are said to be miscible; like dissolves like. A solution in which the dissolved solute is in dynamic equilibrium with the solid (undissolved) solute is a saturated solution. If we add additional solute to a saturated solution, it will not dissolve . A solution containing less than the equilibrium amount of solute is an unsaturated solution. If we add additional solute to an unsaturated solution, it will dissolve. Under certain circumstances, a supersaturated solution one containing more than the equilibrium amount of solute may form. Supersaturated solutions are unstable, and the excess solute normally precipitates out of the solution.
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