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 2
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**Question 2:**
Calculate the pH of a solution that is 0.410 M in HOCl and 0.050 M in NaOCl. \([K_a(\text{HOCl}) = 3.2 \times 10^{-8}]\)
- 8.40
- 0.39
- 7.49
- 6.58
- 3.94
---
**Question 3:**
Calculate \(\Delta S^\circ\) at 25°C for the reduction of PbO(s), \(2\text{PbO(s)} + \text{C(s)} \rightarrow 2\text{Pb(s)} + \text{CO}_2\text{(g)}\), given these absolute entropies:
- \(S^\circ \, (\text{J/K} \cdot \text{mol})\)
\(\text{PbO(s)}\): 69.45
---
This text appears to be questions from a chemistry quiz, testing knowledge on acid-base equilibria and entropy calculations.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3c83ff84-a1b0-4202-ac47-a611b7db8888%2Fca2df450-7e2e-4b61-ae3f-4f9d05f46679%2Fdt7cy1_processed.jpeg&w=3840&q=75)
Transcribed Image Text:---
**Question 2:**
Calculate the pH of a solution that is 0.410 M in HOCl and 0.050 M in NaOCl. \([K_a(\text{HOCl}) = 3.2 \times 10^{-8}]\)
- 8.40
- 0.39
- 7.49
- 6.58
- 3.94
---
**Question 3:**
Calculate \(\Delta S^\circ\) at 25°C for the reduction of PbO(s), \(2\text{PbO(s)} + \text{C(s)} \rightarrow 2\text{Pb(s)} + \text{CO}_2\text{(g)}\), given these absolute entropies:
- \(S^\circ \, (\text{J/K} \cdot \text{mol})\)
\(\text{PbO(s)}\): 69.45
---
This text appears to be questions from a chemistry quiz, testing knowledge on acid-base equilibria and entropy calculations.
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