Chemistry: Matter and Change

Section 2: Strengths of Acids and Bases

Self Check Quizzes

1
Compared to strong acids, weak acids produce __________ ions and conduct electricity __________ efficiently.

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A)fewer, more
B)fewer, less
C)more, more
D)more, less
2
A 0.001M solution of HCl is ____________.
A)a weak acid solution
B)a concentrated acid solution
C)a dilute acid solution
D)neutral
3
In a weak acid, the conjugate base has a greater attraction for the H+ ion than does the base ________.

HY + H2O yields H3O+ +Y-
A)HY
B)H2O
C)H3O+
D)NH4+
4
A base that dissociated entirely into metal ions and hydroxide ions is known as a ________.

NaOH(s) yields Na+(aq) + OH-(aq)
A)strong base
B)weak base
C)concentrated base
D)dilute base
5
Ammonia is a weak base. Which of the following gives the correct base ionization constant expression?

NH3(aq) + H2O(l) yields NH4+(aq) + OH-(aq)
A)Kb = [NH4+]/[NH3]
B)Kb = [OH-]/[NH3]
C)Kb = [NH3]/[NH4+]
D)Kb = [NH4+][OH-]/[NH3]
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