Isoelectric Point of Amino Acids with Ionizable R-Groups

3. Amino Acids / Isoelectric Point of Amino Acids with Ionizable R-Groups / Problem 1

Problem 1

Given the pKa values of an amino acid with ionizable R groups as 2.1, 9.3, and 10.5, order them from smallest to largest.

9.3, 2.1, 10.5

10.5, 9.3, 2.1

2.1, 9.3, 10.5

2.1, 10.5, 9.3