Consider the titration of 44 mL of 0.1 M base with 0.2 M HCl. The analyte is dibasic with pKb1 = 5.0 and pKb2 = 9.8. What is Veq1, the volume of the first equivalence point?What is pKa1 and pKa2 of the conjugate acid, H2B2+?What is the pH of the solution when the volume of added titrant is 0, 11, 22, 33, 44 mL?What is F', the concentration of the conjugate acid H2B2+, when the volume of added titrant is 44 mL?

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Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter14: Equilibria In Acid-base Solutions

Section: Chapter Questions

Problem 74QAP: Fifty cm3 of 1.000 M nitrous acid is titrated with 0.850 M NaOH. What is the pH of the solution (a)...

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Question

Consider the titration of 44 mL of 0.1 M base with 0.2 M HCl. The analyte is dibasic with pK_b1 = 5.0 and pK_b2 = 9.8.

What is V_eq1, the volume of the first equivalence point?

What is pK_a1 and pK_a2of the conjugate acid, H₂B²⁺?

What is the pH of the solution when the volume of added titrant is 0, 11, 22, 33, 44 mL?

What is F', the concentration of the conjugate acid H₂B²⁺, when the volume of added titrant is 44 mL?

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