Consider a 0.373 L solution of the amino glutamic acid (0.685 M), which has a carboxylic acid group (pKa = 2.10), an amine group (pKa = 9.47), and a carboxylic acid side chain (pKa = 4.10). How many liters of 2.87 M NaOH would you need to add to reach the isoelectric point of the amino acid?
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