13. The pka of an acid is 2.35. What is the acid-dissociation constant of the acid? O 4.5 x 10- O 2.4x10² O 2.2 x 10-¹² O None of these 14. An acid (HA) has a Ka of 3.4 x 104. What is the H₂O* concentration in equilibrium if the original HA concentration is 0.50 M? O 0.013 M O 0.026 M 0.039 M None of these

Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter16: Principles Of Chemical Reactivity: The Chemistry Of Acids And Bases
Section: Chapter Questions
Problem 106GQ: The hydrogen phthalate ion, C8HsO4, is a weak acid with Ka = 3.91 106....
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Answer the following questions.

Questions Nos. 13-14

13. The pka of an acid is 2.35. What is the acid-dissociation constant of
the acid?
O 4.5 x 10-
O 2.4x10²
O 2.2 x 10-¹²
O None of these
14. An acid (HA) has a Ka of 3.4 x 104. What is the H₂O* concentration in
equilibrium if the original HA concentration is 0.50 M?
O 0.013 M
O 0.026 M
0.039 M
None of these
Transcribed Image Text:13. The pka of an acid is 2.35. What is the acid-dissociation constant of the acid? O 4.5 x 10- O 2.4x10² O 2.2 x 10-¹² O None of these 14. An acid (HA) has a Ka of 3.4 x 104. What is the H₂O* concentration in equilibrium if the original HA concentration is 0.50 M? O 0.013 M O 0.026 M 0.039 M None of these
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