17. Acid and Base Equilibrium
Triprotic Acids and Bases
17. Acid and Base Equilibrium Triprotic Acids and Bases
4PRACTICE PROBLEM
Which of the following is correct based on the relationship of the successive pKa and Kb values for most polyprotic acids?
I. Ka1 < Kb1
II. Ka1 > Ka2 > Ka3
III. pKa3 > pKa2 > pKa1
IV. Kb1 > Kb2 > Kb3
V. pKb1 > pKb2 > pKb3
Which of the following is correct based on the relationship of the successive pKa and Kb values for most polyprotic acids?
I. Ka1 < Kb1
II. Ka1 > Ka2 > Ka3
III. pKa3 > pKa2 > pKa1
IV. Kb1 > Kb2 > Kb3
V. pKb1 > pKb2 > pKb3