Quiz: Weak Acid/Base Equilibria | Pathways to Chemistry

Created on July 22, 2022 By

Dr. O'Connor

Weak Acid/Base Equilibria

1 / 5

What is the pH of an aqueous solution that is 0.75 M HNO₂. Ka = 4.0 x 10^-4

1.46

3.95

1.76

9.84

2 / 5

Which of the following is the weaker acid?

H₂O

HCN

NH₄⁺

3 / 5

Which of the following acids has the strongest base?

HBr

NH₄⁺

H₂O

HSO₄^-

4 / 5

Which aqueous solution would have the highest pH?

HClO₄ (aq)

NH₄⁺ (aq)

H₂S (aq)

HPO₄^2- (aq)

5 / 5

What is the percent dissociation for an aqueous 0.65 M HNO₂ solution? Ka = 4.0 x 10^-4

(Hint: Set up an ICE table to solve for x)

1.9%

2.5%

6.8%

12.2%

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