What Is the Isoelectric Point of Glutamic Acid (PK_a of α-CO₂H

question 15

Multiple Choice

What is the isoelectric point of glutamic acid (pK_a of α-CO₂H, 2.10; pK_a of β-CO₂H, 4.07; pH of α-NH₂, 9.47) ?

• A) 3.08
• B) 5.67
• C) 6.16
• D) 17.28

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