A buffer solution is 0.452 M in HClO and 0.357 M in KClO . If Ka for HClO is 3.5×10-8 , what is the pH of this buffer solution?

Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter15: Acid-base Equilibria
Section: Chapter Questions
Problem 45E: Some K2SO3 and KHSO3 are dissolved in 250.0 mL of solution and the resulting pH is 7.25. Which is...
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a. A buffer solution is 0.452 M in HClO and 0.357 M in KClO . If Ka for HClO is 3.5×10-8 , what is the pH of this buffer solution?

b.  

A buffer solution is 0.453 M in H2S and 0.284 M in KHS . If Ka1 for h2s is , what is the pH of this buffer solution?

pH = 

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