10. The pH of 0.25 M aqueous solution of a weak acid HA is observed to be 4.15. Determine the acid ionization constant Ka of HA.

Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter16: Reactions Between Acids And Bases
Section: Chapter Questions
Problem 16.30QE
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10. The pH of 0.25 M aqueous solution of a weak acid HA is observed to be 4.15. Determine the acid ionization constant
Ka of HA.
a) 2.8 x 10-4
b) 2.0 x 10-8
c) 1.7 x 10-10
d) 7.1 x 10-5
e) 3.6 x 10³
f) none of the above
Transcribed Image Text:10. The pH of 0.25 M aqueous solution of a weak acid HA is observed to be 4.15. Determine the acid ionization constant Ka of HA. a) 2.8 x 10-4 b) 2.0 x 10-8 c) 1.7 x 10-10 d) 7.1 x 10-5 e) 3.6 x 10³ f) none of the above
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