Matching (Value 5)
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Match each item with the correct statement below. a. | acid dissociation constant (Ka) | d. | Lewis acid | b. | diprotic
acid | e. | pH | c. | hydrogen-ion
donor |
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1.
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acid with two ionizable protons
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2.
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ratio of the concentration of the dissociated to the undissociated form
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3.
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can accept an electron pair
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4.
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Brønsted-Lowry acid
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5.
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negative logarithm of the hydrogen ion concentration
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Multiple Choice (Value 24) Identify the choice that best completes the statement or answers
the question.
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6.
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Which of the following is a property of an acid?
a. | unreactive | c. | strong color | b. | nonelectrolyte | d. | sour taste |
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7.
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What is transferred between a conjugate acid-base pair?
a. | an electron | c. | a hydroxide ion | b. | a hydronium ion | d. | a proton |
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8.
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The formula of the hydrogen ion is often written as ____.
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9.
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What is the best description for a solution with a hydroxide-ion concentration
of 1 10 M?
a. | acidic | c. | basic | b. | neutral | d. | The answer cannot be
determined. |
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10.
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Which of these solutions is the most basic?
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11.
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A Lewis acid is a substance that can ____.
a. | donate a hydrogen ion | c. | accept a pair of electrons | b. | donate a pair of
electrons | d. | accept a hydrogen
ion |
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12.
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Which of these is an Arrhenius base?
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13.
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In the reaction of aluminum bromide with ionized sodium bromide, which compound
is the Lewis acid?
a. | aluminum bromide | c. | sodium ion | b. | bromide ion | d. | None are Lewis
acids. |
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14.
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In a neutral solution, the [H ] is ____.
a. | zero | c. | 1 10M | b. | 10M | d. | equal
to [OH] |
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15.
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Which compound can act as both a Brønsted-Lowry acid and a
Brønsted-Lowry base?
a. | ammonia | c. | hydrochloric acid | b. | water | d. | sodium
hydroxide |
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16.
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What are the acids in the following equilibrium reaction? CN +
H O HCN + OH
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17.
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Which hydroxide compound yields the lowest concentration of hydroxide ions in
aqueous solution?
a. | potassium hydroxide | c. | magnesium hydroxide | b. | calcium hydroxide | d. | sodium
hydroxide |
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18.
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When an acid reacts with a base, what compounds are formed?
a. | a salt and water | c. | a salt only | b. | metal oxides only | d. | water only |
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19.
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What type of acid is sulfuric acid?
a. | triprotic | c. | diprotic | b. | monoprotic | d. | none of the
above |
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20.
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In the reaction CO + H O
HCO + OH , the carbonate ion is acting as
a(n) ____.
a. | Brønsted-Lowry acid | c. | Arrhenius acid | b. | Brønsted-Lowry
base | d. | Arrhenius
base |
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21.
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Which type of solution is one with a pH of 8?
a. | basic | b. | neutral | c. | acidic | d. | The type varies, depending on the
solution. |
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22.
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Which of the following reactions illustrates amphoterism?
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23.
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If the hydrogen ion concentration of a solution is 10 M, is the
solution acidic, alkaline, or neutral?
a. | alkaline | c. | acidic | b. | The answer cannot be
determined. | d. | neutral |
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24.
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What is an acid according to Arrhenius?
a. | a substance that is a hydrogen ion donor | b. | a substance that
ionizes to yield protons in aqueous solution | c. | a substance that accepts an electron
pair | d. | a substance that is a hydrogen ion acceptor |
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25.
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What is a property of a base?
a. | watery feel | c. | strong color | b. | bitter taste | d. | unreactive |
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26.
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Which of the following represents a Brønsted-Lowry conjugate acid-base
pair?
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27.
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What is pH?
a. | the negative logarithm of the hydroxide ion concentration | b. | the positive
logarithm of the hydrogen ion concentration | c. | the positive logarithm of the hydroxide ion
concentration | d. | the negative logarithm of the hydrogen ion
concentration |
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28.
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The products of self-ionization of water are ____.
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29.
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What is the formula for phosphoric acid?
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Short Answer (Value 5)
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30.
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A liter of impure water has 10 mol of hydroxide ions. What is
the concentration of hydronium ions in this sample of water?
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31.
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If the hydrogen-ion concentration is 1 10 M, what is
the pOH of the solution?
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32.
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What is the ion-product constant for water?
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Numeric Response (Value 10)
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33.
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If [OH ] = 1 10 M, what is
the pH of the solution?
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34.
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What is the pH when the hydrogen ion concentration is 7.0 10 M?
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35.
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If the hydroxide ion concentration is 10 M, what is
the pH of the solution?
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36.
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What is the pH of a solution with a concentration of 0.01M hydrochloric
acid?
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37.
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If the hydrogen ion concentration is 10 M, what is
the pH of the solution?
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