Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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What is the pH of a solution whose hydroxide ion concentration,
[OH-], is 1.0 x 10-3 M?
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2.
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The equation below shows ammonia dissolving in water. NH3 (aq) + H2O (l) D NH4+(aq) +
OH-(aq)
Why is water considered an acid when ammonia is dissolved in
it? a. | Water acts as a proton (H+) acceptor. | b. | Water has a 2:1
ratio of hydrogen to oxygen. | c. | Water contains hydrogen
atoms. | d. | Water acts as a proton (H+) donor. |
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3.
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The pH of milk is 6.4. Based on this information, which of the following
statements best describes milk?
a. | It is slightly acidic. | c. | It is very basic. | b. | It is slightly basic. | d. | It is very
acidic. |
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4.
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Cameron neutralized a solution of HCl with a solution of NaOH. What would be
best to add to this reaction to determine when HCl was completely neutralized by NaOH?
a. | A Base | c. | An Indicator | b. | An acid | d. | Deionized water |
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5.
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Of the four different laboratory solutions, which would exhibit the most
acidic behavior?
a. | pH = 11 | c. | pH = 7 | b. | pH = 5 | d. | pH = 3 |
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6.
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How many milliliters of 18.4 M H2SO4 are needed to prepare
600.0 mL of a 0.10 M H2SO4 solution?
a. | 4.0 mL | c. | 4.6 mL | b. | 3.3 mL | d. | 7.5 mL |
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7.
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A solution is made in the below test tube by adding solute particles until no
more will dissolve after stirring. What will happen if more solute is added to the
solution? a. | The additional solute will settle to the bottom of the container because the solution
is saturated. | b. | The solute will begin to dissolve because the solution is
unsaturated. | c. | The entire container will become solid because the solution is
supersaturated. | d. | The solution will become supersaturated. |
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8.
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An unknown substance dissolves readily in water but not in benzene (a nonpolar
solvent). Molecules of what type are present in the unknown substance?
a. | neither polar nor nonpolar | c. | polar | b. | nonpolar | d. | Both polar and nonpolar |
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9.
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What is the formula for the following name: Sulfous Acid
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10.
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Determine the molarity of a solution containing 6.76 g BaCl2 in 750.0
mL of solution.
a. | 0.00901 M | c. | 0.0325 M | b. | 0.0433 M | d. | 0.0244 M |
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11.
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What is the name for the following: HNO3
a. | Nitric Acid | c. | Nitrous Acid | b. | Hydronitrate Acid | d. | Hydronitric
Acid |
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12.
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A solution contains an equal amount of hydrogen ion and hydroxide ions.
This solution would be considered?
a. | basic solution | c. | saline solution | b. | acidic solution | d. | neutral
solution |
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13.
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A stock solution of NaOH is found to have a pH of 10.0. What is the
[H+] for the solution?
a. | 1.0 x 1010 | c. | 2.5 x 10-3 | b. | 5.0 x
10-2 | d. | 1.0 x
10-10 |
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14.
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What is the formula for phosphoric acid?
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15.
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Which of the following would be considered an Arrhenius Base?
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16.
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Hydrochloric acid is a strong, highly corrosive acid. What is the pOH of a
0.037500 M HCl solution?
a. | 12.574 | c. | 1.433 | b. | 12.270 | d. | 1.733 |
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17.
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Which of the following would represent the reaction the occurs between
hydrobromic acid and potassium hydroxide?
a. | KBr + H2O " HBr + KOH | c. | HBr +
H2O " KBr + KOH | b. | HBr + KOH " KBr + H2O | d. | KOH + H2O " KBr + HBr |
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18.
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The picture below depicts an unknown substance. The unknown substance a. | must be a non-electrolyte. | b. | remains unknown because there is not enough
information. | c. | must be a strong electrolyte. | d. | must be a weak
electrolyte. |
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19.
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A solution is always
a. | heterogeneous. | c. | composed of only two phases. | b. | homogeneous. | d. | in the liquid phase. |
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20.
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Matt is testing whether ammonia and vinegar are acids or bases. Litmus
paper helps determine whether a chemical is an acid or a base. A drop of ammonia turns the
litmus paper blue, and a drop of vinegar turns the litmus paper red. What can be deduced from
Matt’s experiment? a. | Both of the chemicals are bases. | b. | Ammonia is an acid, and vinegar is a
base. | c. | Ammonia is a base, and vinegar is an acid. | d. | Both of the
chemicals are acids. |
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21.
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What is the pH of 0.300 M of NaOH?
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22.
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What is the conjugate base of the acid H 3PO 4? H3PO4
(aq) + H2O (l) D
H3O+ (aq) +
H2PO4-1(aq) a. | H2PO4-1(aq) | c. | H3O+ (aq) | b. | OH-1 | d. | H2O (l)
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23.
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Consider the picture below: Which statement accurately describes the picture? a. | A would be considered the solvent because it is getting dissolved by
B. | b. | B would be the solution because it is getting
dissolved. | c. | B would be considered the solute because
it is getting dissolved by A. | d. | A would be considered the solute because
it is getting dissolved by B. |
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24.
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The covalent bond between H and O in a water molecule are polar because
a. | O is more electronegative that H | c. | water molecules are
cohesive | b. | H is more electronegative than O | d. | O and H are equally
electronegative |
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25.
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In the reaction
HSO4-(aq) + H2O
(l) D H3O+(aq) +
SO42-(aq),
an acid- conjugate base pair is
a. | SO42-(aq) and
H2O(l) | c. | HSO4-(aq) and
SO42-(aq) | b. | SO42-(aq) and
H3O+(aq) | d. | HSO4-(aq) and
H2O(l) |
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26.
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What is the pH of a 1.0 x 10-5 M HCl solution?
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27.
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A glass of cola
was spilled on the carpet. Most colas are acidic with a pH usually between 2. Based on
the pH shown above, which of the following substances could best be used to neutralize the spilled
cola? a. | Ammonia | c. | Lemon Juice | b. | Pure Water | d. | Baking Soda |
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28.
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A solution contains a hydroxide ion concentration 4.6 x 10-8 M.
What is the hydrogen ion concentration in this solution?
a. | 4.6 x 10-7 M | c. | 1.6 x 10-7
M | b. | 2.2 x 10-1 M | d. | 2.2 x 10-7 M |
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29.
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Which statement below best descibes what happens when sodium chloride,
NaCl, is dissolved in water?
a. | The NaCl reacts with water to form NaH and HCl. | b. | The NaCl separates
into Na+ and Cl- ions. | c. | The NaCl separates into uncharged Na and
Cl. | d. | The NaCl react with water to form NaOH and
Cl2. |
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30.
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How many moles of H2SO4 are needed to prepare 5.0 liters
of a 2.0 M solution of H2SO4
a. | 10 mol | c. | 20 mol | b. | 5.0 mol | d. | 2.5 mol |
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31.
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Which equation represents a neutralization reaction?
a. | H2CO3(aq) " CO2(g) +
H2O(l) | b. | 2H2(g)
+ O2(g) "
2H2O(l) | c. | 2Al(OH)3(s) "
Al2O3(s) + 3H2O(l) | d. | H2SO4(aq) +2NaOH(aq)"Na2SO4(aq)+2H2O(l) |
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32.
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A substance has a hydroxide concentration of 0.00761 M. This solution
would be considered a
a. | acidic | c. | neutral | b. | basic | d. | saline |
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