What is the pH of alanine solution in which a-amino group is one-half dissociated? pKa values are pK (-COOH) 2.43 and pK(-NH3+) 9.69, respectively.
answer : pH = 9.69
explanation:
at one half dissociationof carboxylic acid group pH = pKa1 . this means acid group pKa
so
pH = 2.43
in case of of amino group : pH = pKa2
pH = 9.69
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