1. Properties of Solutions
James Kim
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2. Properties of Solution
Solution Composition
Colligative Property
Factors Affecting Solubility
Energies of Solution Formation

3. For Dilute aqueous solutions,
Solution Composition
Molarity (M) - number of moles of solute per liter solution
Molality (m) – number of moles of solute per kilogram of solvent
For Dilute aqueous solutions,
Molarity = Molality
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Mass Percentage

4. Mole, Mass Percentage
Mole Percent
Mass Percent
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5. Colligative Property Vapor Pressure Boiling Pressure Depression
Freezing Pressure Depression
Osmosis
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6. Vapor Pressure
Vapor Pressures - equilibrium pressure of gas molecules from that liquid above the liquid itself
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7. Boiling Point Depression
ΔTbp = Kbp msolute
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8. Freezing Point Depression
ΔTfp = Kfp msolute
∴The addition of solute RAISES the boiling point
The addition of solute LOWERS the freezing point
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9. Osmosis
Osmosis: The movement of solvent molecules through a semipermeable membrane from a region of lower solute concentration to a region of higher solute concentration.
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10. Factors Affecting Solubility
Structure
Pressure
Temperature
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11. Structure
Solubility of a solute in a solvent purely depends on the nature of both solute and solvent Solubility of a non-polar solute in a solvent is large Polar solute has low solubility or insoluble in a non-polar solvent
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12. Pressure
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13. Temperature
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14. Energies of solution Formation
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