3-1. For each of the given amino acids, write the equilib- rium reactions that would apply at a pH corresponding to each of the pK, values for each amino acid: (a) alanine; (b) glutamic acid; (c) arginine; (d) a₁, e-diaminopimelic acid (pK₁, = 1.8, pK₁₂ = 2.2, pKa, = 8.8, pK, = 9.9), whose for- a4 mula is HOOCCH(CH,) CHCOOH 1..... NH₂ NH₂

3-1. For each of the given amino acids, write the equilib- rium reactions that would apply at a pH corresponding to each of the pK, values for each amino acid: (a) alanine; (b) glutamic acid; (c) arginine; (d) a₁, e-diaminopimelic acid (pK₁, = 1.8, pK₁₂ = 2.2, pKa, = 8.8, pK, = 9.9), whose for- a4 mula is HOOCCH(CH,) CHCOOH 1..... NH₂ NH₂

Organic Chemistry

9th Edition

ISBN:9781305080485

Author:John E. McMurry

Publisher:John E. McMurry

Chapter26: Biomolecules: Amino Acids, Peptides, And Proteins

Section26.SE: Something Extra

Problem 28MP

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If the pH of a solution of Arginine is equal to a half of the 3 pka values of all of its functional groups, what will be the charge on the majority of the Arg molecules in that solution? Please explain. Am i supposedd to add up the three pka values and then divide it in half to find the pH? Thanks
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