1. Chapter 5

2. 1. What is often the source of the ammonium ion in waste water?
fish by-products
human and animal waste
industrial plating compounds
algae

3. 2. In an alcoholic beverage with 10% alcohol content by volume, how can the alcohol be defined?
as a solvent
as a solute
as a solution
as a fluid

4. 3.Blood plasma is considered what component of a solution?
the solvent
the protein
the solute
the lipid

5. 4.How are molecules described when they contain both a positive and negative end?
planar
apolar
non-polar
polar

6. 5.In general, when an aqueous solution is heated, what happens to the solubility of ionic compounds within it?
Solubility decreases.
Solubility increases.
Kinetic energy is added by the solute.
Kinetic energy is removed by the solute.

7. 6.What affects the rate at which solutes dissolve?
temperature of the solution
surface area of the solute
concentration of the solute
all of the above

8. 7.Why does powdered sugar dissolve in water more rapidly than a sugar cube?
greater surface area of the powder
more kinetic energy in the powdered sample
greater concentration in the sugar cube
greater density of the sugar cube

9. 8.What is an electrolyte? a compound that dissolves in water
a compound that dissociates into ions in water
a compound that dissociates into molecules in water
an ionic compound that doesn't dissolve in water

10. 9.What is a weak electrolyte?
a compound that completely forms ions in solution
a compound that only partially forms molecules in solution
a compound that completely forms molecules in solution
a compound that only partially forms ions in solution

11. 10. Which compounds could be electrolytes?
SO3
NO2
CH4
MgCl2

12. 11.Which of these are electrolytes?
ICl
CO2
NaCl CO

13. 12. Which of the following are not electrolytes?
NaI
CaCl2
KBr
NO2

14. 13. What is a saturated solution?
one that contains the maximum amount of solute that can be dissolved.
one that contains the maximum amount of solvent that can be dissolved.
one that contains the maximum amount of solution that can be dissolved.
one that contains the maximum amount of a salt that can be dissolved.

15. 14. What type of compound is NH4NO3?
acidic
basic
insoluble
soluble

16. 15. Molarity is what? moles of solvent per liters of solution
moles of solute per liters of solution
moles of solute per liters of solute
moles of solvent per liters of solvent

17. 16. What is the molarity of a solution made from 58. 0 g of NaCl in 1
16. What is the molarity of a solution made from 58.0 g of NaCl in 1.0 L of water?
58.0 M
1.00 M
1.42 M
0.01 M

18. 17. What is the molarity of a solution made from 0.20 mol of KBr and 0.80 L of water?

19. 18. An acid is any compound that can release what?

20. 19. What do all weak acids have in common?
They are weak electrolytes.
They are non-electrolytes.
They are strongly acidic.
They are strong electrolytes.

21. 20. NaOH is classified as what kind of compound?
weak base
strong acid
strong base
weak acid

22. 21. How is a base defined? as a compound that produces hydroxide ions
as a compound that produces H+ ions
as a compound with a pH below 7
as a compound with pH = 7

23. 22. What is lithium hydroxide?
LiOH, a strong base
LiOH, a weak base
Li(OH)2, a strong base
Li(OH)2, a weak base

24. 23. A solution with a pH = 3.5 is said to be what?
acidic
basic
neutral
can't tell from the information given

25. 24. What is the molarity of a solution that contains 2. 5 mol NaI in 5
24. What is the molarity of a solution that contains 2.5 mol NaI in 5.0 L of solution? 25
0.5
0.2
can't be determined

26. 25. What is a solution with a pH of 12?
neutral
acidic
basic
concentrated

27. 26. Which of the following substances has the highest concentration of hydrogen ions in solution?
Coca cola pH - 3
Banana pH - 5
Antacid pH - 10
Clorox bleach pH-13.2

28. not enough information to tell
27. If equal molar amounts of two solutions, one with pH = 1, the other with pH = 14, were mixed carefully and no solution was lost, what would be the pH of the final solution? 15 13 7
not enough information to tell

29. 28. What is the pH of a completely neutral solution?14 1 7

30. 29. The products that would be expected in the neutralization reaction involving nitric acid and barium hydroxide are:
BaO and H2O
BaO2 and 2H2O
BaNO3 and H2O
Ba(NO3)2 and 2H2O

31. Acidic Basic Neutral salt
30. After cleaning some windows, you notice that the cleaner you used dries out your skin. Upon analysis, you collect the following data: litmus test - blue texture - slippery taste - bitter reaction with Mg -no reaction How would this cleaner be classified?
Acidic
Basic
Neutral
salt