1. Vocab and Solubility Curves

2. Vocabulary:
1. Solute: Substance being dissolved (Ex. Sugar) 2. Solvent: Substance the solute is dissolved in (Ex. Water) * Does the “dissolving” 3. Solution: The mixture of a solvent and at least 1 solute

3. 4. Solubility: The ability of a substance to be dissolved
The measure of how much solute can dissolve in a given solvent at a given temperature
5. Dissolved: When a solute in no longer visible in the solution

4. 6. Insoluble: Incapable of being dissolved
Ex. Vegetable oil & Water
7. Soluble: Capable of being dissolved
Solids in liquids - Ex. NaCl dissolved in H₂O
Liquids in liquids - Ex. Food coloring dissolved in H2O
Gases in liquids - Ex: CO2 in soda and O2 in H₂O

5. 8. Unsaturated: More solute could be added
9. Saturated: The solution is “full” of solute
* No more can be added
10. Supersaturated: There is more solute than can fit
11. Suspension: Mixture - particles can be seen easily
* Like sand in water

6. Factors that Affect Solubility
Temperature: Increase Temp = Increase Solubility
Molecule Size: Larger Particles, decrease solubility
Stirring (ONLY increases the dissolving rate)
For Gases:
Increase Pressure, Increase Solubility of a Gas
Increase Temperature, Decrease Solubility of a Gas

7. Solubility Curves