Question

What is the pI of glycine? The structure and pKa values are shown below.

• A. 2.26
• B. 5.97
• C. 3.63
• D. 11.94

Answer 1

Answer: (B)

$\text{pI}\text{=}\frac{\text{2}\text{.34}\text{+}\text{9}\text{.6}}{\text{2}}\text{=}\text{5}\text{.97}$