. The concentration of an unknown weak acid solution is 0.20M, and the solution has a pH of 3.89. What is Ką for this weak acid?

Chemistry: Principles and Reactions
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ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter15: Complex Ion And Precipitation Equilibria
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1. The concentration of an unknown weak acid solution is 0.20M, and the solution has a pH of 3.89. What is Ką for this weak acid?
The concentration of an unknown weak base solution is 0.35M, and the solution has a pH of 11.26. What is Kp for this weak base?
Transcribed Image Text:1. The concentration of an unknown weak acid solution is 0.20M, and the solution has a pH of 3.89. What is Ką for this weak acid? The concentration of an unknown weak base solution is 0.35M, and the solution has a pH of 11.26. What is Kp for this weak base?
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Since you have posted multiple questions, we are entitled to answer the first only.

Given: Initial concentration of weak acid (assuming HA) = 0.20 M

And pH of the solution = 3.89 

 

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