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1. Which of the followings will be the best candidate to make a buffer of pH = 8.50 a. HC₂H₂O₂ (K=1.8x10³) b. H.ASO, (K 5.1x10-10) c. HBrO (K₂=2.5x10³) d. HIO (K₂=2.3x10-¹¹)

1. Which of the followings will be the best candidate to make a buffer of pH = 8.50 a. HC₂H₂O₂ (K=1.8x10³) b. H.ASO, (K 5.1x10-10) c. HBrO (K₂=2.5x10³) d. HIO (K₂=2.3x10-¹¹)

Chemistry
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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1. Which of the followings will be the best candidate to make a buffer of pH = 8.50 a. HC₂H₂O₂ (K=1.8x10³) b. H.ASO, (K₁=5.1x10-10) c. HBrO (K₂=2.5x10³) d. HIO (K₂=2.3x10-¹¹)
Transcribed Image Text:1. Which of the followings will be the best candidate to make a buffer of pH = 8.50 a. HC₂H₂O₂ (K=1.8x10³) b. H.ASO, (K₁=5.1x10-10) c. HBrO (K₂=2.5x10³) d. HIO (K₂=2.3x10-¹¹)
Expert Solution
Step 1: Buffer solution:

Buffer solution are those solution which resist change in their pH. 

pH range of buffer tells us about the pH between which the solution can acts as a buffer 

pH range can be calculated as follows: 

Lower pH range = pKa - 1 

Higher pH range = pKa + 1 

pKa = - logKa 

Ka = dissociation constant of acid


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