Chemistry Concepts and Applications

Chapter 15: Acids and Bases React

Standardized Test Practice

1
The reaction of HCl with NH3 is an example of a __________ acid reacting with a __________ base.

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A)strong, strong
B)weak, strong
C)strong, weak
D)weak, weak
2
What would a neutral human blood pH indicate?

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A)The patient has normal blood pH.
B)The patient has a serious illness.
C)The patient has died.
D)The patient is hyperventilating.
3
What is the endpoint pH shown in the titration graph?

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A)pH = 9.27
B)pH = 7.27
C)pH = 5.27
D)pH = 3.27
4
The complete neutralization of a weak acid with a strong base produces a(n) __________ solution.
A)acidic
B)basic
C)cold
D)neutral
5
Ions that are present in a solution but that do not participate in the reaction are called __________.
A)gases
B)products
C)reactants
D)spectator ions
6
According to the Bronsted-Lowry definition, an acid is a __________.
A)electron acceptor
B)electron donor
C)hydrogen-ion acceptor
D)hydrogen-ion donor
7
What is the base in the reaction HI + H2O → H3O+ + I-?
A)H2O
B)H3O+
C)HI
D)I2
8
Which of these is a spectator ion in the reaction 2NaOH(aq) + CuCl2(aq) → 2NaCl(aq) + Cu(OH)2(s)?
A)Cu
B)Cl and Na
C)Na
D)OH
9
Name the spectator ion in the following equation, including the correct coefficient:Cu(s) + 4HNO3 (aq) → Cu(NO3)2 (aq) + 2NO2(g) + 2H2O (l)
A)2NO2
B)3NO2
C)2NO3
D)3NO3
10
Which of these combinations will NOT make an acid-base buffer?
A)NaOH/NaCl
B)NH3/NH4NO3
C)HC2H3O2/NaC2H3O2
D)HCN/KCN
11
Buffers maintain the pH of human blood near __________.
A)1
B)6.8
C)7.4
D)12.5
12
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
13
A solution of known molarity used in an acid-base titration is known as a/an __________.
A)aliquot
B)heterogeneous solution
C)indicator
D)standard solution
14
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
15
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
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