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In: Chemistry

a) 125 mL of a 0.109 M phenylalanine (pKa1 = 1.83, pKa2 = 9.13) solution is...

a) 125 mL of a 0.109 M phenylalanine (pKa1 = 1.83, pKa2 = 9.13) solution is titrated with 0.223 M NaOH. What is the pH after 0 ml of NaOH have been added?

b) 125 mL of a 0.109 M phenylalanine (pKa1 = 1.83, pKa2 = 9.13) solution is titrated with 0.223 M NaOH. What is the pH after 25 ml of NaOH have been added?

c) 125 mL of a 0.109 M phenylalanine (pKa1 = 1.83, pKa2 = 9.13) solution is titrated with 0.223 M NaOH. What is the pH after 75 ml of NaOH have been added?

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