4. Which of the following is NOT a buffer? Explain your choice. • CH;NH2 - CH;NH;CI • NAHSO, - H,SO4 • CGH;COOH – CgH;COO KCN- НCN

Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter16: Reactions Between Acids And Bases
Section: Chapter Questions
Problem 16.87QE
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can you help me on the second problem please 

3. Which of the following solutions of monoprotic acids has the HIGHEST concentration of its
conjugate? Explain your choice.
Monoprotic Acid
Ka
0.10 M HF
3.5x10-4
0.10 M HCOOH
1.8x10-4
0.10 М СН;CООН
1.8x10-5
0.10 М СоH,CООН
6.3x10-5
4. Which of the following is NOT a buffer? Explain your choice.
• CH;NH, – CH;NH,CI
• NAHSO, - H,SO4
• CH;COOH – C,H;COO
KCN – HCN
Transcribed Image Text:3. Which of the following solutions of monoprotic acids has the HIGHEST concentration of its conjugate? Explain your choice. Monoprotic Acid Ka 0.10 M HF 3.5x10-4 0.10 M HCOOH 1.8x10-4 0.10 М СН;CООН 1.8x10-5 0.10 М СоH,CООН 6.3x10-5 4. Which of the following is NOT a buffer? Explain your choice. • CH;NH, – CH;NH,CI • NAHSO, - H,SO4 • CH;COOH – C,H;COO KCN – HCN
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