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12 10 10 20 25 Volume of 0.40M NAOH added (ml) Information needed for the question: Half titration point is at 6 ml and at pH of 4 titration of ascorbic acid with NaOH Mass of ascorbic acid is 0.8831g Question 3: a) Calculate both [HA] and [A-] for another point near the half titration point in the buffer Hd

12 10 10 20 25 Volume of 0.40M NAOH added (ml) Information needed for the question: Half titration point is at 6 ml and at pH of 4 titration of ascorbic acid with NaOH Mass of ascorbic acid is 0.8831g Question 3: a) Calculate both [HA] and [A-] for another point near the half titration point in the buffer Hd

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
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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14 12 10 8 4 2 10 15 20 25 Volume of 0.40M N2OH added (ml) Information needed for the question: Half titration point is at 6 ml and at pH of 4 titration of ascorbic acid with NaOH Mass of ascorbic acid is 0.8831g Question 3: a) Calculate both [HA] and [A-] for another point near the half titration point in the buffer region (i.e a point +/- 1 of the half-titration point) Assume that your graduated cylinder delivered 50 mL of water (two significant figures and the volume of the solid ascorbic acid is negligible) b) Determine [H+] ([H3O+] for the same point used in a) and insert this value into the equilibrium equation to calculate Ka Hd
Transcribed Image Text:14 12 10 8 4 2 10 15 20 25 Volume of 0.40M N2OH added (ml) Information needed for the question: Half titration point is at 6 ml and at pH of 4 titration of ascorbic acid with NaOH Mass of ascorbic acid is 0.8831g Question 3: a) Calculate both [HA] and [A-] for another point near the half titration point in the buffer region (i.e a point +/- 1 of the half-titration point) Assume that your graduated cylinder delivered 50 mL of water (two significant figures and the volume of the solid ascorbic acid is negligible) b) Determine [H+] ([H3O+] for the same point used in a) and insert this value into the equilibrium equation to calculate Ka Hd
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