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The pKb values for the dibasic base B are pKb1 = 2.10 and pKb2 = 7.65....

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Chemistry

The pKb values for the dibasic base B are pKb1 = 2.10 and pKb2 =7.65. Calculate the pH at each of the following points in thetitration of 50.0 mL of a 0.85 M B(aq) with 0.85 M HCl(aq).

a) before addition of any HCl

b)after addition of 25.0mL of HCl

c)after addition of 50.0mL of HCl

d) after addition of 75.0mL of HCl

e) after addition of 100.0 mL of HCl

Answer & Explanation Solved by verified expert
4.2 Ratings (705 Votes)
pKb1 210 pKb2 765 B molarity 085 M a before addition of any HCl B H2O BH OH 085 0 0 initial 085 x x x equilibrium Kb1 BHOHB 794 x 103 x2 085 x x2 794 x 103 x 6749 x    See Answer
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