A chemical engineer is studying the following reaction: CH3CH₂NH₂(aq) + HCl(aq) → Cl(aq) + CH3CH₂NH₂(aq) At the temperature the engineer picks, the equilibrium constant K for this reaction is 2.0. The engineer charges ("fills") four reaction vessels with ethylamine and hydrogen chloride, and lets the reaction begin. She then measures the composition of the mixture inside each vessel from time to time. Her first set of measurements are shown in the table below. Predict the changes in the compositions the engineer should expect next time she measures the compositions. reaction vessel A B C с compound CH,CH,NH, H CI CI CH₂CH₂NH3 CH,CH,NH, H Cl Cl CH,CH,NH, CH,CH,NH, H Cl Cl CH,CH,NH, concentration 0.22 M 0.29 M 0.91 M 1.23 M 0.71 M 0.80 M 0.86 M 1.30 M 0.85 M 0.92 M 0.28 M 0.60 M expected change in concentration Ot increase O decrease O decrease Ot increase Ot increase Ot increase Of increase Ot increase Ot increase ↑ Ot increase Ot increase + Ot increase Ot increase O decrease O↓ decrease O decrease ↓ O decrease ↓ Odecrease O decrease O decrease O decrease ↓ O decrease ↓ Ot increase O decrease (no change) O(no change) O (no change) (no change) (no change) (no change) O(no change) (no change) O(no change) O (no change) O(no change) O (no change)
A chemical engineer is studying the following reaction: CH3CH₂NH₂(aq) + HCl(aq) → Cl(aq) + CH3CH₂NH₂(aq) At the temperature the engineer picks, the equilibrium constant K for this reaction is 2.0. The engineer charges ("fills") four reaction vessels with ethylamine and hydrogen chloride, and lets the reaction begin. She then measures the composition of the mixture inside each vessel from time to time. Her first set of measurements are shown in the table below. Predict the changes in the compositions the engineer should expect next time she measures the compositions. reaction vessel A B C с compound CH,CH,NH, H CI CI CH₂CH₂NH3 CH,CH,NH, H Cl Cl CH,CH,NH, CH,CH,NH, H Cl Cl CH,CH,NH, concentration 0.22 M 0.29 M 0.91 M 1.23 M 0.71 M 0.80 M 0.86 M 1.30 M 0.85 M 0.92 M 0.28 M 0.60 M expected change in concentration Ot increase O decrease O decrease Ot increase Ot increase Ot increase Of increase Ot increase Ot increase ↑ Ot increase Ot increase + Ot increase Ot increase O decrease O↓ decrease O decrease ↓ O decrease ↓ Odecrease O decrease O decrease O decrease ↓ O decrease ↓ Ot increase O decrease (no change) O(no change) O (no change) (no change) (no change) (no change) O(no change) (no change) O(no change) O (no change) O(no change) O (no change)
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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![## Reaction Study and Expected Changes in Compositions
A chemical engineer is studying the following reaction:
\[ \text{CH}_3\text{CH}_2\text{NH}_2(\text{aq}) + \text{HCl}(\text{aq}) \rightarrow \text{Cl}^-(\text{aq}) + \text{CH}_3\text{CH}_2\text{NH}_3^+(\text{aq}) \]
### Equilibrium Constant
At the temperature chosen by the engineer, the equilibrium constant \( K_c \) for this reaction is 2.0.
### Experimental Setup
The engineer fills four reaction vessels with ethylamine and hydrogen chloride to initiate the reaction. Over time, she measures the composition within each vessel. The table provided shows the first set of measurements.
### Predicting Changes in Composition
The table below outlines the concentration and expected change for each compound in the reaction vessels:
| Reaction Vessel | Compound | Concentration | Expected Change in Concentration |
|-----------------|-------------------------|---------------|-------------------------------------|
| A | \(\text{CH}_3\text{CH}_2\text{NH}_2\) | 0.22 M | ↑ increase |
| | \(\text{HCl}\) | 0.29 M | |
| | \(\text{Cl}^-\) | 0.91 M | |
| | \(\text{CH}_3\text{CH}_2\text{NH}_3^+\) | 1.23 M | ↓ decrease |
| B | \(\text{CH}_3\text{CH}_2\text{NH}_2\) | 0.71 M | |
| | \(\text{HCl}\) | 0.80 M | |
| | \(\text{Cl}^-\) | 0.86 M | |
| | \(\text{CH}_3\text{CH}_2\text{NH}_3^+\) | 1.30 M | ↓ decrease |
| C | \(\text{CH}_3\text{CH}_2\text{NH}_2\) | 0.85 M | |
| | \](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa60cc6ce-11de-444a-af29-e9eb1b50e640%2Faa848ad9-ca3a-4888-810e-8a7b6004199f%2F2sqwi6p_processed.png&w=3840&q=75)
Transcribed Image Text:## Reaction Study and Expected Changes in Compositions
A chemical engineer is studying the following reaction:
\[ \text{CH}_3\text{CH}_2\text{NH}_2(\text{aq}) + \text{HCl}(\text{aq}) \rightarrow \text{Cl}^-(\text{aq}) + \text{CH}_3\text{CH}_2\text{NH}_3^+(\text{aq}) \]
### Equilibrium Constant
At the temperature chosen by the engineer, the equilibrium constant \( K_c \) for this reaction is 2.0.
### Experimental Setup
The engineer fills four reaction vessels with ethylamine and hydrogen chloride to initiate the reaction. Over time, she measures the composition within each vessel. The table provided shows the first set of measurements.
### Predicting Changes in Composition
The table below outlines the concentration and expected change for each compound in the reaction vessels:
| Reaction Vessel | Compound | Concentration | Expected Change in Concentration |
|-----------------|-------------------------|---------------|-------------------------------------|
| A | \(\text{CH}_3\text{CH}_2\text{NH}_2\) | 0.22 M | ↑ increase |
| | \(\text{HCl}\) | 0.29 M | |
| | \(\text{Cl}^-\) | 0.91 M | |
| | \(\text{CH}_3\text{CH}_2\text{NH}_3^+\) | 1.23 M | ↓ decrease |
| B | \(\text{CH}_3\text{CH}_2\text{NH}_2\) | 0.71 M | |
| | \(\text{HCl}\) | 0.80 M | |
| | \(\text{Cl}^-\) | 0.86 M | |
| | \(\text{CH}_3\text{CH}_2\text{NH}_3^+\) | 1.30 M | ↓ decrease |
| C | \(\text{CH}_3\text{CH}_2\text{NH}_2\) | 0.85 M | |
| | \
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