Name ____________________________ Color _______________ Date _________________
Unit 12 Solutions Review
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Review learning targets for Unit 12
Solute, solvent, soln
Like dissolves like
Colligative properties (freezing point depression, boiling point elevation, Van’t Hoff Factor)
Saturated, unsaturated, supersaturated
4 types of mixtures and examples and examples of each
What are the differences between the solubilities of gases and
solids
8. Naming and formula writing
9. Steps to make a solution
10. Steps to dilute a solution
Solution
Supersaturated,
Saturated or
Unsaturated?
If unsaturated:
How much more
solute can dissolve
in the solution?
a solution that
contains 95g of
NaNO3 at 30°C (in
100 mL H2O)
a solution that
contains 50g of
NH4Cl at 50°C (in
100 mL H2O)
a solution that
contains 20g of
KClO3 at 50°C (in
100 mL H2O)
a solution that
contains 70g of KI
at 0°C (in 100 mL
H2O)
11. Calculate the molarity (M) of a solution prepared by dissolving 175 g of KNO3 in 750 mL of water.
12. Calculate the molarity (M) of a solution prepared by dissolving 235.0 g of CaCl2 in 650.0 mL of water.
13. How many mL of 3.0M HCl are needed to make 300.0 mL of 0.10M HCl?
14. How many mL of 6.0M HCl are needed to make 1200.0 mL of 0.50M HCl?
15. If I have 340 mL of a 0.5 M NaBr solution, what will the concentration be if I add 560 mL more water to
it?
16. If I dilute 250 mL of 0.10 M lithium acetate solution to a volume of 750 mL, what will the concentration
of this solution be?
17. Calculate the number of mL of 2.00 M HNO3 solution required to react with 216 grams of Ag
according to the equation.
____ Ag(s) + ____ HNO3(aq) → ____ AgNO3(aq) + ____ NO(g) +____ H2O(l)
18. Calculate in mL the volume of 0.500 M NaOH required to react with 3.00 grams of acetic acid.
The equation is:
____ NaOH(aq) + ____ HC2H3O2(aq) → ____ NaC2H3O2(aq) + ____ H2O(l)
19. Calculate the number of grams of AgCl formed when 0.200 L of 0.200 M AgNO3 reacts with an
excess of CaCl2. (5.73 g)
The equation is: ____ AgNO3(aq) + ____ CaCl2(aq) → ____ AgCl(s) + ____ Ca(NO3)2(aq)
20.
Compound
Van’t Hoff Factor
C6H12O6
Na2SO4
LiCl
CH4
CaO
21. Which of the compounds above will have the greatest effect on melting point? Explain.
Answers:
11. 2.3 M
12. 3.258 M
13. 10. mL
14. 1.0 x 102 mL
15. 0.19 M (Note: the final volume in your equation should be 900 mL)
16. 0.033 M (Note: the final volume in your equation shoud be 750 mL)
17. 1340 mL
18. 99.9 mL
19. 5.73 g
20. 1, 3, 2, 1, 2
21. Na2SO4 (See your notes for an explanation)