1. Could something dissolved in the Snake
River have caused the fish kill?

2. These attractions make
it possible for water to
dissolve lots of different
things.
Polar molecules attracted to other
polar molecules or ionic
compounds
Dissolving NaCl (table salt) video

3. No positive or negative ends]
Nonpolar dissolves in nonpolar
Polar dissolves in polar
Rule: “Like dissolves Like”
Nonpolar compounds

5. Why does sugar dissolve in water
but not in cooking oil?

6. Solubility of Solids
Will more sugar dissolve in 1 Liter of water
or 2 Liters of water?
Will more sugar dissolve in cold water or
hot water?

7. Solubility curve
Shows how much solute
will dissolve in a given
amount of water at a certain
temp.

8.  How much
potassium nitrate
will dissolve at 60
degrees Celsius in
100 ml of water?
 How much
potassium nitrate
will dissolve at 60
degrees Celsius in
200ml of water?
 At what temperature
can you dissolve 220g
of potassium iodide in
100ml of water?

9. As temperature increases, what
happens to the solubility of solids?
As temperature
increases, solubility of
solids increases.

10. Solubility of gases
How much Oxygen
will dissolve at 40
degrees Celsius in
100 ml of water?
At what temperature
can you dissolve 1.0
mM of Carbon
Monoxide in water?

11. Solubility of gases
As temperature
increases, the
solubility of
gases decreases
“Warm pop goes
flat faster!”