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pH of basic buffer when strong acid is added to it 7. (a) Find the pH of a buffer solution (A buffered solution contains 0.25 M aqueous ammonia (Kb = 1.8*10-5) and 0.40 M ammonium chloride) when 0.10 mol of hydrochloric acid is added to 1.0 L of the solution. (b) Find % dissociation of the base.

pH of basic buffer when strong acid is added to it 7. (a) Find the pH of a buffer solution (A buffered solution contains 0.25 M aqueous ammonia (Kb = 1.8*10-5) and 0.40 M ammonium chloride) when 0.10 mol of hydrochloric acid is added to 1.0 L of the solution. (b) Find % dissociation of the base.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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pH of basic buffer when strong acid is added to it 7. (a) Find the pH of a buffer solution (A buffered solution contains 0.25 M aqueous ammonia (K = 1.8*10-5) and 0.40 M ammonium chloride) when 0.10 mol of hydrochloric acid is added to 1.0 L of the solution. (b) Find % dissociation of the base. Preparation of a buffer 8. Make a buffer for pH = 4.30. The Ka of chloroacetic acid is 1.35*10-³. Is this acid a good choice to make a buffer at pH 4.30? 9. Choose one of the following acids and its conjugate base to make buffer at pH 4.30. acid (a) propanoic acid (b) benzoic acid (c) hypochlorous acid Ka 1.3*10-5 6.4*10-5 3.5*10-8
Transcribed Image Text:pH of basic buffer when strong acid is added to it 7. (a) Find the pH of a buffer solution (A buffered solution contains 0.25 M aqueous ammonia (K = 1.8*10-5) and 0.40 M ammonium chloride) when 0.10 mol of hydrochloric acid is added to 1.0 L of the solution. (b) Find % dissociation of the base. Preparation of a buffer 8. Make a buffer for pH = 4.30. The Ka of chloroacetic acid is 1.35*10-³. Is this acid a good choice to make a buffer at pH 4.30? 9. Choose one of the following acids and its conjugate base to make buffer at pH 4.30. acid (a) propanoic acid (b) benzoic acid (c) hypochlorous acid Ka 1.3*10-5 6.4*10-5 3.5*10-8
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