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Review Questions Chapter 11

1 Which substance is most likely to be soluble in a nonpolar solvent like gasoline?

 

solid carbon (diamonds)
sodium nitrate, NaNO3
glycerol, C3H5(OH)3
butane, C4H10
iron

2. Which substance will dissolve in water to form a solution that will carry an electric current?

solid carbon(diamonds)
sodium nitrate, NaNO3
glycerol, C3H5(OH)3
butane, C4H10
iron.

3. When a solution of sulfuric acid is added to a potassium hydroxide solution, a reaction takes place. Which of the following is an acceptable equation for the reaction?

H2SO4 + 2 KOH KSO4 + 2 H2O
2 HSO4 + K(OH)2 K(SO4)2 + 2 H2O
H2SO4 + 2 KOH K2SO4 + H2O
H2SO4 + 2 KOH K2SO4 + 2 H2O
H2SO4 + 2 POH P2SO4 + 2 H2O

4. Which of the following are true of the mixture formed when 4.6 g of Na2SO4 are added to 100 mL water?

1. The name of the solvent is sodium sulfate
2. The solute is an electolyte
3. A precipitate will form
4. The solution formed will be 0.32 M

none
all
1, 2 and 3
2, 3 and 4
2 and 4

5. What volume of 18.0 M sulfuric acid is needed to prepare 5.00 L of 0.105 M sulfuric acid?


9.45 mL
29.2 mL
0.290 mL
9.45x10-2L
29.2 L

6. When compared to pure water, a 0.5 M solution of potassium chloride will have:

a lower boiling point
a higher freezing point
a higher vapor pressure
a greater ability to conduct an electrical current
none of these

7. What volume of 0.20 M sodium hydroxide will react exactly with 25 mL of 0.20 M sulfuric acid?

12.5 mL
20 mL
25 mL
50 mL
100 mL

8. Which of the following is not required for an acid-base titration?

The salt formed by the reaction must be soluble.
The volumes of solutions used must be accurately measured.
There must be a way of determining when the endpoint of the titration is reached.
The concentration of one of the solutions must be known.
All these conditions are required

9. Which of the following affect the ability of a solid to dissolve in a particular liquid?

1. the temperature of the liquid and the solid
2. the atmospheric pressure
3. the intermolecular forces in the solvent
4. the interparticle forces in the solid

none
all
1 and 2
1, 3 and 4
3 and 4

10. What is the net ionic equation for the reaction of magnesium with hydrochloric acid?

Mg + 2 H+ Mg2+ + H2
Mg + 2HCl MgCl2 + H2
2 Mg + 2 H+ 2 Mg+ + H2
Mn + 2 H+ 2 Mg2+ + H2
None of these is the correct net ionic equation for this reaction.

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