amino-acid-valine-has-pka-values-of-2-32-and-9-62-determine-the-ph-at-which-vali

Question

Amino acid valine has pK_a values of 2.32 and 9.62. Determine the pH at which valine would exist in the following form.

Chemical structure of valine showing 50% ionization at pH 2.32 and pH 9.62.

Accepted Answer

pH 9.62

Answer

pH 2.32

Answer

pH 5.50

Answer

pH 12.00

Amino acid valine has pKa values of 2.32 and 9.62. Determine the pH at which valine would exist in the following form.