You measured the pH of a 0.01M HCI solution (strong acid) and a 0.01M CH3COOH solution (weak acid). What would you expect? The pH of the 2 solutions would be the same since they are both 0.01M The pH of the HCI solution would be higher because [H3O+] is higher The pH of the HCI solution would be lower because [H3O+] is lower The pH of the HCI solution would be lower because [H3O+] is higher

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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**Question:**

You measured the pH of a 0.01M HCl solution (strong acid) and a 0.01M CH₃COOH solution (weak acid). What would you expect?

**Answer Choices:**

- **Option 1:** The pH of the 2 solutions would be the same since they are both 0.01M.
- **Option 2:** The pH of the HCl solution would be higher because [H₃O⁺] is higher.
- **Option 3:** The pH of the HCl solution would be lower because [H₃O⁺] is lower.
- **Option 4:** The pH of the HCl solution would be lower because [H₃O⁺] is higher.

**Explanation:**
The question is designed to test your understanding of the differences between strong acids (e.g., HCl) and weak acids (e.g., CH₃COOH). Strong acids fully dissociate in solution, resulting in a higher concentration of hydrogen ions ([H₃O⁺]), whereas weak acids only partially dissociate.

**Correct Answer:**
- **Option 4:** The pH of the HCl solution would be lower because [H₃O⁺] is higher.

The higher concentration of hydrogen ions ([H₃O⁺]) in the HCl solution results in a lower pH, indicating increased acidity.
Transcribed Image Text:**Question:** You measured the pH of a 0.01M HCl solution (strong acid) and a 0.01M CH₃COOH solution (weak acid). What would you expect? **Answer Choices:** - **Option 1:** The pH of the 2 solutions would be the same since they are both 0.01M. - **Option 2:** The pH of the HCl solution would be higher because [H₃O⁺] is higher. - **Option 3:** The pH of the HCl solution would be lower because [H₃O⁺] is lower. - **Option 4:** The pH of the HCl solution would be lower because [H₃O⁺] is higher. **Explanation:** The question is designed to test your understanding of the differences between strong acids (e.g., HCl) and weak acids (e.g., CH₃COOH). Strong acids fully dissociate in solution, resulting in a higher concentration of hydrogen ions ([H₃O⁺]), whereas weak acids only partially dissociate. **Correct Answer:** - **Option 4:** The pH of the HCl solution would be lower because [H₃O⁺] is higher. The higher concentration of hydrogen ions ([H₃O⁺]) in the HCl solution results in a lower pH, indicating increased acidity.
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