The Ka of formic acid HCOOH is 1.77 x 10-4. A 0.60 M formic acid solution of 40.0 mL is titrated with 0.40 M NaOH. Which of the following statements is correct regarding the above titration? Choose one option only. a. After adding 20.0 mL of NaOH, the pH of the resulting solution is calculated as pH = pKa. b. After adding 60.0 mL of NaOH, the pH of the resulting solution is greater than 7. c. After adding 30. 0 mL of NaOH, the pH of the resulting solution is equal to the pKb of format ion (HCOO-). d. The pH of 0.60 M of formic acid solution of 40.0 mL is greater than 7. e. After adding 40.0 mL of NaOH the pH of the resulting solution is greater than 7
The Ka of formic acid HCOOH is 1.77 x 10-4. A 0.60 M formic acid solution of 40.0 mL is titrated with 0.40 M NaOH. Which of the following statements is correct regarding the above titration? Choose one option only. a. After adding 20.0 mL of NaOH, the pH of the resulting solution is calculated as pH = pKa. b. After adding 60.0 mL of NaOH, the pH of the resulting solution is greater than 7. c. After adding 30. 0 mL of NaOH, the pH of the resulting solution is equal to the pKb of format ion (HCOO-). d. The pH of 0.60 M of formic acid solution of 40.0 mL is greater than 7. e. After adding 40.0 mL of NaOH the pH of the resulting solution is greater than 7
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
Chapter15: Acid-base Equilibria
Section: Chapter Questions
Problem 107AE: A student intends to titrate a solution of a weak monoprotic acid with a sodium hydroxide solution...
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Question
The Ka of formic acid HCOOH is 1.77 x 10-4. A 0.60 M formic acid solution of 40.0 mL is titrated with 0.40 M NaOH. Which of the following statements is correct regarding the above titration? Choose one option only.
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a. After adding 20.0 mL of NaOH, the pH of the resulting solution is calculated as pH = pKa. |
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| b. |
After adding 60.0 mL of NaOH, the pH of the resulting solution is greater than 7. |
|
| c. |
After adding 30. 0 mL of NaOH, the pH of the resulting solution is equal to the pKb of format ion (HCOO-). |
|
| d. |
The pH of 0.60 M of formic acid solution of 40.0 mL is greater than 7.
|
|
| e. |
After adding 40.0 mL of NaOH the pH of the resulting solution is greater than 7 |
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