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4) Consider the polyprotic acid H₂C2O4 (Ka1 = 5.9 x 102 and Ka2 = 6.4 x 10-5). a. Write out the reaction that produces Kal and write out the reaction that produces Ka2. b. Considering only Ka1, what is the pH of a 0.200 M H₂C₂O4 solution? c. Considering both Kai and Kaz, what is the pH of the 0.200 M H₂C₂O4 solution? How much did the [H3O+] and pH change by considering both? Does it appear to be a good assumption to only consider Kai when looking at polyprotic acids?

4) Consider the polyprotic acid H₂C2O4 (Ka1 = 5.9 x 102 and Ka2 = 6.4 x 10-5). a. Write out the reaction that produces Kal and write out the reaction that produces Ka2. b. Considering only Ka1, what is the pH of a 0.200 M H₂C₂O4 solution? c. Considering both Kai and Kaz, what is the pH of the 0.200 M H₂C₂O4 solution? How much did the [H3O+] and pH change by considering both? Does it appear to be a good assumption to only consider Kai when looking at polyprotic acids?

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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Answer a-c please 

4) Consider the polyprotic acid H₂C₂O4 (Ka1 = 5.9 x 10-2 and Ka2 = 6.4 x 10-5). a. Write out the reaction that produces Ka1 and write out the reaction that produces Ka2. b. Considering only Ka1, what is the pH of a 0.200 M H₂C₂O4 solution? c. Considering both Kai and Ka2, what is the pH of the 0.200 M H₂C₂O4 solution? How much did the [H3O+] and pH change by considering both? Does it appear to be a good assumption to only consider Ka1 when looking at polyprotic acids?
Transcribed Image Text:4) Consider the polyprotic acid H₂C₂O4 (Ka1 = 5.9 x 10-2 and Ka2 = 6.4 x 10-5). a. Write out the reaction that produces Ka1 and write out the reaction that produces Ka2. b. Considering only Ka1, what is the pH of a 0.200 M H₂C₂O4 solution? c. Considering both Kai and Ka2, what is the pH of the 0.200 M H₂C₂O4 solution? How much did the [H3O+] and pH change by considering both? Does it appear to be a good assumption to only consider Ka1 when looking at polyprotic acids?
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