Biochemistry
What is the definition of a polyprotic acid?
Calculate the isoelectric point (pI) for an amino acid with pKa values of 2.1 and 9.3.
At a pH of 3, what is the predominant form of an amino acid with a pKa of 2.5 for its carboxyl group and 9.5 for its amino group?
Draw the predominant structure of an amino acid at a pH of 9, given its pKa values are 2.0 and 9.0.
How is the isoelectric point (pI) of an amino acid determined from its titration curve?