The pKb values for the dibasic base B are pKb1 = 2.10 and pKb2 = 7.53....

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Chemistry

The pKb values for the dibasic base B are pKb1 = 2.10 and pKb2 =7.53. Calculate the pH at each of the following points in thetitration of 50.0 mL of a 0.75 M B(aq) with 0.75 M HCl(aq).

(a) before addition of any HCl

(b) after addition of 25.0 mL of HCl

(c) after addition of 50.0 mL of HCl

(d) after addition of 75.0 mL of HCl

(e) after addition of 100.0 mL of HCl

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3.7 Ratings (579 Votes)
pKb1 210 pKb2 744 B molarity 075 M a before addition of any HCl B H2O BH OH 075 0 0 initial 075 x x x equilibrium Kb1 BHOHB 794 x 103 x2 075 x x2 794 x 103 x 596 x 103 0 x    See Answer
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