In: Chemistry
Tryptophan (HW) is a diprotic amino acid with Ka1 = 4.3 × 10-3 and Ka2 = 4.7 × 10-10. Determine the pH of the following solutions.
A) 0.214 M tryptophan hydrochloride (H2W Cl–)
B) 0.214 M tryptophan (HW)
C) 0.214 M sodium tryptophanate (Na W–)