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...
Related questions
Question
100%
![**Question:**
What is the pH of a buffer containing 0.11 M HClO (aq) and 0.57 M NaClO (aq)?
**Options:**
- 12.70
- 8.23
- 7.52
- 2.34
- 6.81
**Explanation:**
To find the pH of a buffer solution containing hypochlorous acid (HClO) and its conjugate base sodium hypochlorite (NaClO), you can use the Henderson-Hasselbalch equation:
\[ \text{pH} = \text{pKa} + \log \left( \frac{[\text{A}^-]}{[\text{HA}]} \right) \]
Where:
- \([\text{A}^-]\) is the concentration of the conjugate base, NaClO.
- \([\text{HA}]\) is the concentration of the acid, HClO.
- pKa is the negative log of the acid dissociation constant (Ka) for HClO, which is typically around 7.5.
Substitute the given concentrations into the equation and solve for the pH.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F704a01f5-4824-48f7-9b88-5a0e03edcc36%2F9fc5f289-a1f6-4c50-95ac-692562194611%2Fnkbzu6v_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Question:**
What is the pH of a buffer containing 0.11 M HClO (aq) and 0.57 M NaClO (aq)?
**Options:**
- 12.70
- 8.23
- 7.52
- 2.34
- 6.81
**Explanation:**
To find the pH of a buffer solution containing hypochlorous acid (HClO) and its conjugate base sodium hypochlorite (NaClO), you can use the Henderson-Hasselbalch equation:
\[ \text{pH} = \text{pKa} + \log \left( \frac{[\text{A}^-]}{[\text{HA}]} \right) \]
Where:
- \([\text{A}^-]\) is the concentration of the conjugate base, NaClO.
- \([\text{HA}]\) is the concentration of the acid, HClO.
- pKa is the negative log of the acid dissociation constant (Ka) for HClO, which is typically around 7.5.
Substitute the given concentrations into the equation and solve for the pH.
Expert Solution

Step 1
Step by step
Solved in 2 steps with 2 images

Recommended textbooks for you

Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning

Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education

Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning

Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning

Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education

Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning

Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education

Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning

Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY