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Ch. 15 - Solutions

Ch. 15 - Solutions. II. Solubility & Concentration. A. Concentration. Concentrated solution large amount of solute Dilute solution small amount of solute. A. Concentration. % by Volume usu. liquid in liquid EX : 10% juice = 10mL juice + 90mL water. % by Mass usu. solid in liquid

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Ch. 15 - Solutions

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  1. Ch. 15 - Solutions II. Solubility & Concentration

  2. A. Concentration • Concentrated solution • large amount of solute • Dilute solution • small amount of solute

  3. A. Concentration • % by Volume • usu. liquid in liquid • EX: 10% juice = 10mL juice + 90mL water • % by Mass • usu. solid in liquid • EX: 20% NaCl = 20g NaCl + 80g water

  4. UNSATURATED SOLUTION more solute dissolves SATURATED SOLUTION no more solute dissolves SUPERSATURATED SOLUTION becomes unstable, crystals form A. Concentration concentration

  5. B. Solubility • Solubility • maximum grams of solute that will dissolve in 100 g of solvent at a given temperature • varies with temperature • based on a saturated solution

  6. B. Solubility • Solubility Curve • shows the dependence of solubility on temperature

  7. B. Solubility • Solids are more soluble at... • high temperatures. • Gases are more soluble at... • low temperatures. • high pressures (Henry’s Law).

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