Section 15.2
Applications of Acid-Base Reactions
Practice Test
1.
What is the formula for the salt formed when calcium hydroxide and nitric acid react?
a.
Ca(NO
3
)
2
b.
CaN
c.
CaNO
3
d.
CaNO
2
Hint
2.
A __________ is a substance that resists changes in pH when moderate amounts of acids or bases are added.
a.
buffer
b.
hydroxide
c.
hydronium
d.
spectator ion
Hint
3.
Which of these combinations will NOT make an acid-base buffer?
a.
NaOH/NaCl
b.
NH
3
/NH
4
NO
3
c.
HC
2
H
3
O
2
/NaC
2
H
3
O
2
d.
HCN/KCN
Hint
4.
Buffers maintain the pH of human blood near _____.
a.
1
b.
6.8
c.
7.4
d.
12.5
Hint
5.
If the rock and soil around a lake are rich in this, the lake can neutralize acid rain.
a.
cinnabar
b.
granite
c.
limestone
d.
quartz
Hint
6.
Which of these compounds is NOT used in antacids?
a.
KOH
b.
Mg(OH)
2
c.
CaCO
3
d.
NaHCO
3
Hint
7.
Titration is the general process of determining the ____________ of an acidic or basic solution through the use of an acid-base reaction.
a.
boiling point
b.
density
c.
molarity
d.
polarity
Hint
8.
A solution of known molarity used in an acid-base titration is known as a/an _______________.
a.
aliquot
b.
hetergeneous solution
c.
indicator
d.
standard solution
Hint
9.
What is the net ionic equation for the reaction of a hydrogen carbonate antacid with hydrochloric acid?
a.
HCO
3
-
(aq) + H
+
(aq)
H
2
O(l) + CO
2
(g)
b.
H
2
CO
3
(aq) + 2HCl(aq)
2H
2
O(l) + CO
2
(g) + Cl
-
(aq)
c.
HCO
3
-
(aq) + HCl(aq)
H
2
O(l) + CO
2
(g) + Cl
-
(aq)
d.
HCO
3
-
(aq) + H
+
(aq)
H
2
CO
3
(g)
Hint
10.
One of the best acid-base indicators to use for a strong acid-strong base titration is ______________.
a.
bromothymol blue
b.
phenolphthalein
c.
methyl red
d.
thymol blue
Hint
11.
One of the best acid-base indicators to use for a weak acid-strong base titration is ______________.
a.
bromothymol blue
b.
methyl red
c.
phenolphthalein
d.
thymol blue
Hint
12.
22.5 mL of 0.122 M HCl neutralizes 30.0 mL of a KOH solution. What is the molarity of the KOH solution?
a.
0.0915 M
b.
0.163 M
c.
0.00445 M
d.
1.08 M
Hint
13.
What volume of 0.0500 M HNO
3
is required to neutralize 52.6 mL of 0.250 M LiOH?
a.
10.5 mL
b.
52.6 mL
c.
263 mL
d.
525 mL
Hint
14.
Acid-base reactions are usually __________________ reactions.
a.
combustion
b.
decomposition
c.
double-displacement
d.
synthesis
Hint
