For the following combustion reaction CH3COCH3(1) + 402(g) ->>> 3CO2(g) + 3H₂O(g) AH = -1.79 × 10³ kJ When a 22.1-g sample of acetone (molar mass = 58.08 g/mol) is burned, how much energy (in kJ) is released as heat?
For the following combustion reaction CH3COCH3(1) + 402(g) ->>> 3CO2(g) + 3H₂O(g) AH = -1.79 × 10³ kJ When a 22.1-g sample of acetone (molar mass = 58.08 g/mol) is burned, how much energy (in kJ) is released as heat?
Chemistry
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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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![**Combustion Reaction of Acetone**
For the following combustion reaction:
\[ \text{CH}_3\text{COCH}_3(l) + 4\text{O}_2(g) \rightarrow 3\text{CO}_2(g) + 3\text{H}_2\text{O}(g) \]
\[ \Delta H = -1.79 \times 10^3 \text{ kJ} \]
**Problem:**
When a 22.1-g sample of acetone (molar mass = 58.08 g/mol) is burned, how much energy (in kJ) is released as heat?
**Solution:**
To find the energy released, follow these steps:
1. **Calculate the number of moles of acetone:**
\[
\text{Number of moles} = \frac{\text{mass}}{\text{molar mass}} = \frac{22.1 \text{ g}}{58.08 \text{ g/mol}}
\]
2. **Relate moles of acetone to energy released:**
\[
\text{Energy released} = \text{Number of moles} \times \Delta H
\]
By performing these calculations, you can determine the amount of energy released when the specified amount of acetone is burned.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc42f8bf5-c4ea-440d-bf0d-c8a9270c2068%2F87aee49c-134b-42dc-996c-d48dca63493e%2Fmymk3fd_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Combustion Reaction of Acetone**
For the following combustion reaction:
\[ \text{CH}_3\text{COCH}_3(l) + 4\text{O}_2(g) \rightarrow 3\text{CO}_2(g) + 3\text{H}_2\text{O}(g) \]
\[ \Delta H = -1.79 \times 10^3 \text{ kJ} \]
**Problem:**
When a 22.1-g sample of acetone (molar mass = 58.08 g/mol) is burned, how much energy (in kJ) is released as heat?
**Solution:**
To find the energy released, follow these steps:
1. **Calculate the number of moles of acetone:**
\[
\text{Number of moles} = \frac{\text{mass}}{\text{molar mass}} = \frac{22.1 \text{ g}}{58.08 \text{ g/mol}}
\]
2. **Relate moles of acetone to energy released:**
\[
\text{Energy released} = \text{Number of moles} \times \Delta H
\]
By performing these calculations, you can determine the amount of energy released when the specified amount of acetone is burned.
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