Question

In an amino acid, the carboxyl group ionizes at pKa1 = 2.34 and ammonium ion at pka2 = 9.60. The isoelectric
point of the amino acid is at pH (Single Choice Question)
a
4.32
b
3.34
c
9.46
d
5.97​

Answer 1

Answer:

5.97

Explanation:

The isoelectric point of the amino acid is at :

pH=

2

pK

a1

+pK

a2

=

2

2.34+9.60

=5.97