For a certain chemical process, the addition of an acid and a base to a buffer must keep the pH in the range of 6.0 - 7.0. Which buffer components would be best for this process? Each buffer below has a pH of 6.5. A. 1.8 M NaNO₂/0.001 M HNO₂ buffer. pK (HNO₂) = 5.6 ×10¯4 B. 5.8 M NHCOONa/o.01 M HCOOH buffer. pKa (HCOOH) = 1.8 ×10 -4 C. 0.63 M Na₂HPO/1.0 M NaH₂PO₂ buffer. pK2 (H₂PO₂) = 2.0 x10-7 D. 2.0 M CHCOONa/0.01 MC HCOOH buffer. pKa HCOOH) = 6.3 ×10¯5 a2
For a certain chemical process, the addition of an acid and a base to a buffer must keep the pH in the range of 6.0 - 7.0. Which buffer components would be best for this process? Each buffer below has a pH of 6.5. A. 1.8 M NaNO₂/0.001 M HNO₂ buffer. pK (HNO₂) = 5.6 ×10¯4 B. 5.8 M NHCOONa/o.01 M HCOOH buffer. pKa (HCOOH) = 1.8 ×10 -4 C. 0.63 M Na₂HPO/1.0 M NaH₂PO₂ buffer. pK2 (H₂PO₂) = 2.0 x10-7 D. 2.0 M CHCOONa/0.01 MC HCOOH buffer. pKa HCOOH) = 6.3 ×10¯5 a2
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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![For a certain chemical process, the addition of an acid and a base to a buffer must keep the pH
in the range of 6.0 - 7.0. Which buffer components would be best for this process?
Each buffer below has a pH of 6.5.
A. 1.8 M NaNO₂/0.001 M HNO₂ buffer. pK (HNO₂) = 5.6 ×10¯4
B. 5.8 M NHCOONa/0.01 M HCOOH buffer. pKa (HCOOH) = 1.8 x10 4
C. 0.63 M Na₂HPO3/1.0 M NaH PO buffer. pK2 (H₂PO₂) = 2.0 x10-7
D. 2.0 M C H COONa/0.01 MC HCOOH buffer. pka(CH₂COOH) = 6.3 ×10−5
a2
5](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F96e56296-18d3-4bb7-9fa3-1250dffedf44%2F16974c20-d18d-4f3e-bd51-b04246aef03e%2Faapa9k9_processed.jpeg&w=3840&q=75)
Transcribed Image Text:For a certain chemical process, the addition of an acid and a base to a buffer must keep the pH
in the range of 6.0 - 7.0. Which buffer components would be best for this process?
Each buffer below has a pH of 6.5.
A. 1.8 M NaNO₂/0.001 M HNO₂ buffer. pK (HNO₂) = 5.6 ×10¯4
B. 5.8 M NHCOONa/0.01 M HCOOH buffer. pKa (HCOOH) = 1.8 x10 4
C. 0.63 M Na₂HPO3/1.0 M NaH PO buffer. pK2 (H₂PO₂) = 2.0 x10-7
D. 2.0 M C H COONa/0.01 MC HCOOH buffer. pka(CH₂COOH) = 6.3 ×10−5
a2
5
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