Pates for the reaction: tert-butyl bromide + hydroxide tert-butanol + bromide What is the order of reaction with respect to hydroxide? [tert-butyl bromide] (M) [hydroxide] (M) Rate (M/sec) 0.25 0.25 1.1 х 10-6 0.50 0.25 2.2 х 10-6 0.50 0.25 2.2 х 10-6

Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter11: Chemical Kinetics: Rates Of Reactions
Section: Chapter Questions
Problem 25QRT
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The following set of data was obtained by the method of initial rates for the reaction:

**tert-butyl bromide + hydroxide → tert-butanol + bromide**

**What is the order of reaction with respect to hydroxide?**

| [tert-butyl bromide] (M) | [hydroxide] (M) | Rate (M/sec)     |
|--------------------------|-----------------|------------------|
| 0.25                     | 0.25            | 1.1 x 10⁻⁶       |
| 0.50                     | 0.25            | 2.2 x 10⁻⁶       |
| 0.50                     | 0.25            | 2.2 x 10⁻⁶       |

**Select one of the following options:**

- ○ Cannot be determined from the data provided.
- ○ 1
- ○ 0
- ○ 2
- ○ -1

**Explanation:**

To determine the order of reaction with respect to hydroxide, observe the data table provided. Note that when the concentration of tert-butyl bromide is doubled from 0.25 M to 0.50 M, the rate doubles, indicating that the reaction is first order with respect to tert-butyl bromide.

However, the concentration of hydroxide remains constant across these experiments, which means no direct conclusion about the order concerning hydroxide can be drawn from this data set alone. Therefore, more data or a different experimental setup is needed to determine the order with respect to hydroxide conclusively.
Transcribed Image Text:The following set of data was obtained by the method of initial rates for the reaction: **tert-butyl bromide + hydroxide → tert-butanol + bromide** **What is the order of reaction with respect to hydroxide?** | [tert-butyl bromide] (M) | [hydroxide] (M) | Rate (M/sec) | |--------------------------|-----------------|------------------| | 0.25 | 0.25 | 1.1 x 10⁻⁶ | | 0.50 | 0.25 | 2.2 x 10⁻⁶ | | 0.50 | 0.25 | 2.2 x 10⁻⁶ | **Select one of the following options:** - ○ Cannot be determined from the data provided. - ○ 1 - ○ 0 - ○ 2 - ○ -1 **Explanation:** To determine the order of reaction with respect to hydroxide, observe the data table provided. Note that when the concentration of tert-butyl bromide is doubled from 0.25 M to 0.50 M, the rate doubles, indicating that the reaction is first order with respect to tert-butyl bromide. However, the concentration of hydroxide remains constant across these experiments, which means no direct conclusion about the order concerning hydroxide can be drawn from this data set alone. Therefore, more data or a different experimental setup is needed to determine the order with respect to hydroxide conclusively.
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