CH 17-18 REVIEW
1. A clear solution of silver nitrate is mixed with a
solution of sodium chloride and a white precipitate
forms.
a.
b.
c.
Write a balanced equation for this reaction.
Write a complete ionic equation.
Write a net-ionic equation
2. Define the following:
a. Hydrogen bonds
b. Hygroscopic
c. Desiccant
d. Deliquescent
e. efflorescent
3. Water is a polar solvent; gasoline is a nonpolar
solvent. Decide which compounds are more likely
to dissolve in water and which are more likely to
dissolve in gasoline?
a. Sucrose (C12H22O11)
b. Na2SO4
c. Methane (CH4)
d. KCl
4. Match each term with the following descriptions. A description may
apply to more than one term.
a. True solution
b. Colloid
c. Suspension
(1)
Does not settle out on standing
(2)
Heterogeneous mixture
(3)
Particle size less than 1.0nm
(4)
Particles can be filtered out
(5)
Demonstrates the Tyndall Effect
(6)
Particles are invisible to the unaided eye
(7)
Homogeneous milk
(8)
Salt water
(9)
jelly
5. Name and distinguish between the town
components of a solution.
6. Explain the difference between miscible and
immiscible. Provide examples of each.
7. Explain the difference between an unsaturated,
saturated and supersaturated solution.
8. What mass of KNO3 can be dissolved into100 g of
water at 20oC. (use Figure 18.4 on page 504)
9. The solubility of methane, the major component of
natural gas, in water at 20oC and 1.00 atm of
pressure is 0.026 g / L. If the temperature
remains constant, what will be the solubility of this
gas at the following pressure?
a. 0.60 atm
b. 1.80 atm
10. Calculate the molarity (M) of each solution:
a.
b.
1.0 mol KCl in 750 mL of solution
0.50 mol MgCl2 in 1.5 L of solution
11. Calculate the moles and grams of solute in each
solution:
a.
b.
1.0 L of 0.50M NaCl
5.0 x 102 mL of 2.0M KNO3
12. What is the concentration (in % m/v) of the
following solutions:
a. 20.0 g KCl in 0.60 L of solution
b. 32 g NaNO3 in 2.0 L of solution
HINT: (m / v) = mass / vol
(g / mL)
13. What is the freezing point of each solution?
a. 1.40 mol Na2SO4 in 1750 g H2O
b. 0.060 mol MgSO4 in 100 g H2O
14. Determine the freezing points of each 0.20m
aqueous solutions. (use the Kf for water)
a.
b.
c.
K2SO4
CsNO3
Al(NO3)3