A buffer solution contains 0.89 mol of hypoiodous acid (HIO) and 0.57 mol of sodium hypoiodite (NaIO) in 3.40 L. The Ka of hypoiodous acid (HIO) is Ka = 2.3e-11. (a) What is the pH of this buffer? pH =   (b) What is the pH of the buffer after the addition of 0.17 mol of NaOH? (assume no volume change) pH =   (c) What is the pH of the original buffer after the addition of 0.24 mol of HI? (assume no volume change) pH =

Chemistry: Principles and Reactions
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Author:William L. Masterton, Cecile N. Hurley
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Chapter14: Equilibria In Acid-base Solutions
Section: Chapter Questions
Problem 11QAP: A buffer is prepared by dissolving 0.0250 mol of sodium nitrite, NaNO2, in 250.0 mL of 0.0410 M...
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A buffer solution contains 0.89 mol of hypoiodous acid (HIO) and 0.57 mol of sodium hypoiodite (NaIO) in 3.40 L.
The Ka of hypoiodous acid (HIO) is Ka = 2.3e-11.

(a) What is the pH of this buffer?

pH =  


(b) What is the pH of the buffer after the addition of 0.17 mol of NaOH? (assume no volume change)

pH =  

(c) What is the pH of the original buffer after the addition of 0.24 mol of HI? (assume no volume change)

pH =  

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