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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