1. Solubility
and
Reactions

2. There is a limit to the amount of solute which can dissolve in a solvent.
A solution which contains the maximum amount of solute is saturated.
If the solution contains less than the maximum amount of solute it is unsaturated.
The maximum amount of solute which a solution can dissolve depends on temperature.
Try investigation on page 314.

3. How much potassium chlorate could dissolve in 100 mL of water at 34oC?
12 g KClO3 in 100 mL of solution

4. How much sodium chloride could dissolve in 100 mL of water at 65oC?
27 g NaCl in 100 mL of solution

5. 50 mL of a saturated solution of KNO3 contains 24 g of solute.
What temperature is it at?
24 g/50 mL
48 g/100 mL
31.8oC

6. If a saturated solution of ammonium chloride is cooled from 80oC to 40oC what mass of ammonium chloride would precipitate in 5.0 x 102 mL of solution?

7. 20 g / 100 mL
1.0 x 10 g / 50 mL

8. Questions - pg 316 #1
pg 318, Lab Exercise 7.1.1
Practice 4,5
Pg. 319 # 6,7

9. Use the graph on page 316 to complete the table below

10. Use the graph on page 316 to complete the table below

11. Solubility of Gases in Water

12. Solubility Categories
When more than 0.10 mol of a solute dissolve in 1.0 L of water the substance is highly soluble.
If the solubility is less than 0.10 mol/L the substance has a low solubility.
No substance is completely insoluble in water.
When only negligible quantities of a substance dissolves in water it is classified as insoluble.
Ions can be classified as having high or low solubility. Here is a table on page 324

13. SATP - Standard ambient Temperature and Pressure (25oC and 100 kPa)
List some ionic compounds with low solubility.
AgCl,
PbBr2,
CuCl,
Ag2SO4
AgC2H3O2

14. SATP - Standard ambient Temperature and Pressure (25oC and 100 kPa)
List the following as high or low solubility
AgNO3
highly soluble
NH4Br
highly soluble
CaSO4
low solubility
KOH
highly soluble
Pb(NO3)2
highly soluble
Na2S
low solubility
Ba(C2H3O2)2
high
Ca(OH)2
low
Mg3(PO4)2
low
Li2SO3
low