1. Physical Properties of Solutions

2. Matter
Mixture
Homogeneous
Heterogeneous
Pure Substance
Compound
Element
Separate Physically
Separate Chemically

3. Types of Solutions

4. Solution
Solvent
Solute
Soft drink (l)
H2O
Sugar, CO2
Air (g) N2
O2, Ar, CH4
Steel (s) Fe C

5. aqueous solutions of KMnO4
Solubility
Soluble
Insoluble
aqueous solutions of KMnO4
CdS
PbS
Ni(OH)2
Al(OH)3

7. Are the solutions the same? How can we describe them?

8. Concentration
Concentrated
Dilute
Add solvent

9. Saturation
Unsaturated
Saturated
Supersaturated

10. Solvation

11. Three types of interactions in the solution process:
solvent-solvent interaction
solute-solute interaction
solvent-solute interaction
Molecular view of the formation of solution

12. “like dissolves like”
Two substances with similar intermolecular forces are likely to be soluble in each other.
non-polar molecules are soluble in non-polar solvents
CCl4 in C6H6
polar molecules are soluble in polar solvents
C2H5OH in H2O
ionic compounds are more soluble in polar solvents
NaCl in H2O or NH3 (l)

13. Solvation
glucose in water
Glucose in water

14. Factors that Affect Rate of Solvation
Aggravation
Solute particle size (surface area)
Temperature
Pressure (gas only)