Consider a 0.141 L solution of the amino aspartic acid (0.825 M), which has a carboxylic acid group (pKa = 2.10), an amine group (pKa = 9.82), and a carboxylic acid side chain (pKa = 3.86). How many liters of 2.63 M NaOH would you need to add to reach the isoelectric point of the amino acid?