Lysine (K) is a triprotic amino acid whose most protonated form has a charge of 2+. Its acid dissociation constants are pK31 = 1.77, pK32 =9.07, and pkg3 = 10.82.For numbers 1 and 2 refer to the following choices. Write only the letter corresponding to your answer.a. H3K2+ b. H2K²* c. HK2+d. H3K*e. H2K*f. HK*g. H3K h. H2Ki. HK j. H2K-К. НКI. K-m. НК2- п. К2- о. КЗ-1) At pH 7.47, the second most abundant species is2) What is the third most abundant species at this pH?3) At what pH is the concentration of the diprotic species equal to the concentration of the fully deprotonated species. (ANSWER FORMAT:If for example, the answer is 7.12, then c = 7, m =12)C =m =

Groups, whose pKa< given pH get deprotonated and groups, whose pKa> given pH get protonated…

Lysine (K) is a triprotic amino acid whose most protonated form has a charge of 2+. Its acid dissociation constants are pk31 = 1.77, pK2 = 9.07, and pk33 = 10.82. For numbers 1 and 2 refer to the following choices. Write only the letter corresponding to your answer. a. H3K²+ b. H2K²+ c. HK2+ d. H3K* e. H2K* f. HK* g. H3K h. H2K i. HK j. H2K¯ k. HK- I. K- m. HК2- п. К2- о. КЗ- 1) At pH 7.47, the second most abundant species is 2) What is the third most abundant species at this pH? 3) At what pH is the concentration of the diprotic species equal to the concentration of the fully deprotonated species. (ANSWER FORMAT: If for example, the answer is 7.12, then c = 7, m =12) C = m =

Lysine (K) is a triprotic amino acid whose most protonated form has a charge of 2+. Its acid dissociation constants are pk31 = 1.77, pK2 = 9.07, and pk33 = 10.82. For numbers 1 and 2 refer to the following choices. Write only the letter corresponding to your answer. a. H3K²+ b. H2K²+ c. HK2+ d. H3K* e. H2K* f. HK* g. H3K h. H2K i. HK j. H2K¯ k. HK- I. K- m. HК2- п. К2- о. КЗ- 1) At pH 7.47, the second most abundant species is 2) What is the third most abundant species at this pH? 3) At what pH is the concentration of the diprotic species equal to the concentration of the fully deprotonated species. (ANSWER FORMAT: If for example, the answer is 7.12, then c = 7, m =12) C = m =

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter14: Acids And Bases

Section: Chapter Questions

Problem 38QRT

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Lysine (K) is a triprotic amino acid whose most protonated form has a charge of 2+. Its acid dissociation constants are pka1 = 1.77, pKa2 = 9.07, and pKa3 = 10.82. %3D %3D For numbers 1 and 2 refer to the following choices. Write only the letter corresponding to your answer. a. H3K2+ b. H2K2+ c. HK2+ d. H3K* e. H2K+ f. HK* g. H3K h. H2K i. HK j. H2K- k. HK- I. К m. HK2- n. K2- о. КЗ- 1) At pH 7.47, the second most abundant species is 2) What is the third most abundant species at this pH? 3) At what pH is the concentration of the diprotic species equal to the concentration of the fully deprotonated species. (ANSWER FORMAT: If for example, the answer is 7.12, then c = 7, m =12) C = m =
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