Chapter 14:
Acids, Bases, and pH
Practice Test
1.
What is the formula for perchloric acid?
a.
HCl
b.
HClO
4
c.
HClO
3
d.
HClO
2
Hint
2.
Which of these is neither an acid nor a base when mixed with water?
a.
C
2
H
6
b.
HI
c.
LiOH
d.
NH
3
Hint
3.
An aqueous solution of a weak acid contains ___________________ unionized acid molecules.
a.
100%
b.
no
c.
a high concentration of
d.
a low concentration of
Hint
4.
These compounds have a bitter taste and a slippery feel.
a. salts
b. hydrocarbons
c. bases
d. acids
Hint
5.
This substance is usually the top industrial chemical produced in the United States.
a.
sulfuric acid
b.
ammonia
c.
sodium hydroxide
d.
chlorine
Hint
6.
Lemon juice is _______________.
a.
very acidic
b.
neutral
c.
very basic
d.
slightly basic
Hint
7.
A pH of 7 is considered to be _____________.
a.
slightly acidic
b.
slightly basic
c.
highly basic
d.
neutral
Hint
8.
Acids react with active metals to produce ______________.
a.
sulfur
b.
chlorine
c.
oxygen
d.
hydrogen
Hint
9.
Which of the following compounds is NOT a base?
a.
NH
3
b.
NaOH
c.
KOH
d.
KCN
Hint
10.
HC
2
H
3
O
2
is a _______________ acid.
a.
quadprotic
b.
diprotic
c.
strong
d.
monoprotic
Hint
11.
Which of these is formed when ammonia ionizes in water?
a.
NH
2
-
b.
NH
4
+
c.
N
3-
d.
H
3
O
+
Hint
12.
Strong bases are more _______________ than weak bases.
a.
molecular
b.
nonmetallic
c.
dense
d.
highly ionized
Hint
13.
Which of these formulas does NOT represent a strong acid?
a.
HBrO
b.
HBr
c.
HI
d.
H
2
SO
4
Hint
14.
The pH scale is used to express the concentrations of hydronium ions and _____________ ions in aqueous solutions.
a.
fluoride
b.
hydroxide
c.
carbon
d.
potassium
Hint
15.
Which of these is formed when magnesium oxide dissolves in water?
a.
Mg
-
b.
Cl
-
c.
OH
-
d.
H
3
O
+
Hint
16.
Nonmetal oxides are _________________.
a.
nonpolar solutes
b.
hydrides
c.
basic anhydrides
d.
acidic anhydrides
Hint
17.
When added to an acid, litmus is __________.
a.
blue
b.
red
c.
green
d.
yellow
Hint
18.
Acids react with ___________ to produce carbon dioxide.
a.
sulfates
b.
carbonates
c.
phosphates
d.
nitrates
Hint
19.
___________________ allow you to determine the approximate pH of a solution.
a.
Equations
b.
Beakers
c.
Acid-base indicators
d.
Anhydrides
Hint
20.
A pH 2 solution is ___________ times more acidic than a pH 4 solution.
a.
one hundred
b.
two
c.
one million
d.
ten
Hint
