Explain what volume (mL) of 0.170 M NaOH must be added to a 0.140 L solution of 0.015 M glycine hydrochloride (pKa1 = 2.350, pKa2 = 9.778) to adjust the pH to 2.11?
Find out which pKa value to use for glycine. To solve this problem, first set up a reaction table with a weak acid reacting with a strong base then utilized the Henderson-Hasselbalch equation to solve for the concentration of base (OH-).