Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Buffer is the solution which resists the drastic change in pH upon addition of small amount of acid or base.
While choosing the buffer for a specific pH, the pKa of the buffer should be near the desired pH of the solution and the capacity of a buffer should fall within one to two pH units above or below the desired pH values.
Ideally, the pH range of a buffer solution is equal to pKa ± 1.
pKa values of the given buffer solution is:
pKa of CH3COOH is 4.745
pKa of HF is 3.1
pKa of HCN is 9.2
pKa of HClO2 is 1.95
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