The amino acid dl-alanine HCOO-CNH 2 H-CH 3 exists in the following four forms in solution Determine
Question:
The amino acid dl-alanine HCOO-CNH2H-CH3 exists in the following four forms in solution
Determine the fraction of dl-alanine in each of these forms at
a. pH = 3
b. pH = 10
Transcribed Image Text:
K₁ NH CH₂COOH H+ + NHCH₂COO- NH CH,COO` =H*+NH,CH,COO KD NH₂ CH₂COOH NH3 CH₂COO- K2 pK₁ = 2.348 pK2 = 9.867 PKD = -5.41
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a At pH 3 the dlalanine will be mostly in the zwitterion form with a small amount in the cationic fo...View the full answer
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Related Book For
Chemical Biochemical And Engineering Thermodynamics
ISBN: 9780470504796
5th Edition
Authors: Stanley I. Sandler
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