Consider the dipeptide (Pep) of a histidine and a lysine residue, with the neutral form pictured. HN-CH-C- -N- H. CH- Ring-N 4.1 7.9 10.2 Pep" Pep + Pep* + Pep + Pep 2.2 6.0 9.8 10.6 The pKa's are listed in the table below. a-CO2H Ring-NH* a-NH3* e-NH3* pK, - 2.2 pK," = 6.0 pK," = 9.8 pK," = 10.6 %3D What species are present in a Pep solution buffered to pH = 8.0? Select all that apply. O Pep3+ Pep2+ O Pep O Pep* O Pep

Consider the dipeptide (Pep) of a histidine and a lysine residue, with the neutral form pictured. HN-CH-C- -N- H. CH- Ring-N 4.1 7.9 10.2 Pep" Pep + Pep* + Pep + Pep 2.2 6.0 9.8 10.6 The pKa's are listed in the table below. a-CO2H Ring-NH* a-NH3* e-NH3* pK, - 2.2 pK," = 6.0 pK," = 9.8 pK," = 10.6 %3D What species are present in a Pep solution buffered to pH = 8.0? Select all that apply. O Pep3+ Pep2+ O Pep O Pep* O Pep

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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