Consider a buffer made by adding 132.8 g of NaC-H5O, to 300.0 mL of 1.97 M HC-H.O, (Ka = 6.3 x 10-5)   a. What is the pH of this buffer?   b. What is the pH of the buffer after 0.750 mol of H+ has been added?   c. What is the pH of the buffer after 0.250 mol of OH- has been added?

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 121CP: A buffer is made using 45.0 mL of 0.750 M HC3H5O2 (Ka = 1.3 105) and 55.0 mL of 0.700 M NaC3H5O2....
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Consider a buffer made by adding 132.8 g of NaC-H5O, to 300.0 mL of 1.97 M HC-H.O, (Ka = 6.3 x 10-5)

 

a. What is the pH of this buffer?

 

b. What is the pH of the buffer after 0.750 mol of H+ has been added?

 

c. What is the pH of the buffer after 0.250 mol of OH- has been added?

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