1. Warm-up! 
Which one is solute and which one is solvent in the following?
kool-aid & water
Coffee & Creamer
Jello mix & water

2. How much coffee can dissolve In water?
Solubility
How much coffee can dissolve
In water?

3. Solution formation *Watch a video*
Since molecules are moving randomly, a solution will form by itself if the solute is soluble
What can we do to make a solute dissolve faster?
Agitate (stir) the solution
Increase temperature
Decrease particle size (increase surface area)

4. Solubility
When you add a solute to a solvent, you eventually reach a point where no more solute can dissolve.
The amount that dissolves in 100 g of water is called “solubility”
Unit: g of solute/100 g (ml) of water

5. Saturated Solution
Saturated solution: when the maximum amount of solute is dissolved
Unsaturated solution: when less than the maximum amount of solute is dissolved
Supersaturated solution: when more than the maximum amount of solute is dissolved (used in making rock candies)

6. Solubility & temperature
As temperature increases, the kinetic energy of particles increase (particles move faster)
More collisions between solute and solvent particles
The higher temperature, the more soluble
but gases are less soluble at higher temperature
the higher kinetic energy of gas particles allows them to escape from a solution (flat soda on a hot day)

8. Solubility graph