The graph represents the titration of an amino acid with NaOH solution. 12- 11 - 10- pk = 9.69 9- 8 7- pl 601 5 - 4 3 pk = 234 2- 1 20 D OS 10 i's OH (equivalents) A. At what pH is the average net charge - In? pH TOOLS X10 B. Where does the amino acid have a net charge of +1? below pH 2.44 al pH 234 al pH 6.01 al pH=9.69 above pH 9.69