Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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![**Deducting a Rate Law from the Change in Concentration Over Time**
*A chemistry graduate student is studying the rate of this reaction:*
\[ \text{ClCH}_2\text{CH}_2\text{Cl} (g) \rightarrow \text{CH}_2\text{CHCl} (g) + \text{HCl} (g) \]
*She fills a reaction vessel with \(\text{ClCH}_2\text{CH}_2\text{Cl}\) and measures its concentration as the reaction proceeds:*
| Time (seconds) | \([\text{ClCH}_2\text{CH}_2\text{Cl}]\) |
|----------------|-----------------------------|
| 0 | 0.0300 \(M\) |
| 1.0 | 0.0208 \(M\) |
| 2.0 | 0.0144 \(M\) |
| 3.0 | 0.0100 \(M\) |
| 4.0 | 0.00695 \(M\) |
*Use this data to answer the following questions.*
**Question 1:** *Write the rate law for this reaction.*
*Answer format: rate = k \([\text{ClCH}_2\text{CH}_2\text{Cl}]\)*
**Question 2:** *Calculate the value of the rate constant \(k\). Round your answer to 2 significant digits. Also, be sure your answer has the correct unit symbol.*
*Answer format: \( k = \) [value][unit]
**Graphical/Diagram Explanation:**
The image also contains a selection of graphical symbols at the bottom, which appear to be options for entering equations or symbols, including time axes, concentration brackets, and other related symbols. Each symbol could be used for proper formatting of answers or entering different components of chemical equations.](https://content.bartleby.com/qna-images/question/1067c048-27d4-462b-825c-b686bc07047b/ad64ee68-5354-4d0b-8147-cd79b24e486d/a0ipxbn.png)
Transcribed Image Text:**Deducting a Rate Law from the Change in Concentration Over Time**
*A chemistry graduate student is studying the rate of this reaction:*
\[ \text{ClCH}_2\text{CH}_2\text{Cl} (g) \rightarrow \text{CH}_2\text{CHCl} (g) + \text{HCl} (g) \]
*She fills a reaction vessel with \(\text{ClCH}_2\text{CH}_2\text{Cl}\) and measures its concentration as the reaction proceeds:*
| Time (seconds) | \([\text{ClCH}_2\text{CH}_2\text{Cl}]\) |
|----------------|-----------------------------|
| 0 | 0.0300 \(M\) |
| 1.0 | 0.0208 \(M\) |
| 2.0 | 0.0144 \(M\) |
| 3.0 | 0.0100 \(M\) |
| 4.0 | 0.00695 \(M\) |
*Use this data to answer the following questions.*
**Question 1:** *Write the rate law for this reaction.*
*Answer format: rate = k \([\text{ClCH}_2\text{CH}_2\text{Cl}]\)*
**Question 2:** *Calculate the value of the rate constant \(k\). Round your answer to 2 significant digits. Also, be sure your answer has the correct unit symbol.*
*Answer format: \( k = \) [value][unit]
**Graphical/Diagram Explanation:**
The image also contains a selection of graphical symbols at the bottom, which appear to be options for entering equations or symbols, including time axes, concentration brackets, and other related symbols. Each symbol could be used for proper formatting of answers or entering different components of chemical equations.
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