What is the pH of a solution of 0.29 M HCI? 0.38 0.53 O 0.29 O 0.15

Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter15: Solutions Of Acids And Bases
Section: Chapter Questions
Problem 15.91QE
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**Question:**

What is the pH of a solution of 0.29 M HCl?

**Answer Choices:**

- 0.38
- 0.53
- 0.29
- 0.15

**Explanation:**

To calculate the pH of a strong acid like hydrochloric acid (HCl), simply use the formula:

\[ \text{pH} = -\log[\text{H}^+] \]

For a strong acid like HCl that completely dissociates in water, the concentration of hydrogen ions \([\text{H}^+]\) is the same as the concentration of the acid.

Given:
- \([\text{HCl}] = 0.29 \, \text{M}\)

Calculate pH:
\[ \text{pH} = -\log(0.29) \approx 0.54 \]

Therefore, the closest answer choice is 0.53.
Transcribed Image Text:**Question:** What is the pH of a solution of 0.29 M HCl? **Answer Choices:** - 0.38 - 0.53 - 0.29 - 0.15 **Explanation:** To calculate the pH of a strong acid like hydrochloric acid (HCl), simply use the formula: \[ \text{pH} = -\log[\text{H}^+] \] For a strong acid like HCl that completely dissociates in water, the concentration of hydrogen ions \([\text{H}^+]\) is the same as the concentration of the acid. Given: - \([\text{HCl}] = 0.29 \, \text{M}\) Calculate pH: \[ \text{pH} = -\log(0.29) \approx 0.54 \] Therefore, the closest answer choice is 0.53.
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