Calculate the pH of a solution that is 0.143 M HCI.

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
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**Problem Statement:**

Calculate the pH of a solution that is 0.143 M HCl.

**Solution Box:**

pH = [Answer]

**Explanation:**

To find the pH of a 0.143 M hydrochloric acid (HCl) solution, use the formula: 

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

Since HCl is a strong acid, it fully dissociates in water:

\[ \text{HCl} \rightarrow \text{H}^+ + \text{Cl}^- \]

Therefore, the concentration of \(\text{H}^+\) ions is equal to the concentration of the HCl solution, which is 0.143 M. 

Substitute this concentration in the pH formula:

\[ \text{pH} = -\log(0.143) \]

Calculate the result to find the pH.
Transcribed Image Text:**Problem Statement:** Calculate the pH of a solution that is 0.143 M HCl. **Solution Box:** pH = [Answer] **Explanation:** To find the pH of a 0.143 M hydrochloric acid (HCl) solution, use the formula: \[ \text{pH} = -\log[\text{H}^+] \] Since HCl is a strong acid, it fully dissociates in water: \[ \text{HCl} \rightarrow \text{H}^+ + \text{Cl}^- \] Therefore, the concentration of \(\text{H}^+\) ions is equal to the concentration of the HCl solution, which is 0.143 M. Substitute this concentration in the pH formula: \[ \text{pH} = -\log(0.143) \] Calculate the result to find the pH.
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