Iron metal reacts with chlorine gas giving iron (III) chloride. The balanced chemical equation for this reaction is: 2 Fe(s) + 3 Cl₂ (g) → 2 FeCl3 (s) If only 16.1 g of FeCl3 is obtained from 32.0 g of iron and excess Cl2, what is the percent yield? %
Iron metal reacts with chlorine gas giving iron (III) chloride. The balanced chemical equation for this reaction is: 2 Fe(s) + 3 Cl₂ (g) → 2 FeCl3 (s) If only 16.1 g of FeCl3 is obtained from 32.0 g of iron and excess Cl2, what is the percent yield? %
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
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![### Iron and Chlorine Reaction: Percent Yield Calculation
**Problem Statement:**
Iron metal reacts with chlorine gas, giving iron(III) chloride. The balanced chemical equation for this reaction is:
\[ 2 \, \text{Fe} (s) + 3 \, \text{Cl}_2 (g) \rightarrow 2 \, \text{FeCl}_3 (s) \]
**Question:**
If only 16.1 g of FeCl\(_3\) is obtained from 32.0 g of iron and excess Cl\(_2\), what is the percent yield?
**Solution Framework:**
To calculate the percent yield, follow these steps:
1. **Determine the Molar Masses:**
- Molar mass of Fe (iron): \( 55.85 \, \text{g/mol} \)
- Molar mass of FeCl\(_3\):
- Fe: \( 55.85 \, \text{g/mol} \)
- Cl: \( 35.45 \, \text{g/mol} \) (since there are three Cl atoms, multiply by 3)
Therefore, molar mass of FeCl\(_3\) = \( 55.85 + 3 \times 35.45 \)
= \( 55.85 + 106.35 \)
= \( 162.2 \, \text{g/mol} \)
2. **Calculate the Theoretical Yield:**
- From the balanced equation:
\[ 2 \, \text{Fe} \rightarrow 2 \, \text{FeCl}_3 \]
Therefore, the molar ratio of Fe to FeCl\(_3\) is 1:1.
- Moles of Fe used:
\[ \frac{32.0 \, \text{g Fe}}{55.85 \, \text{g/mol}} \approx 0.573 \, \text{mol Fe} \]
- Since the molar ratio is 1:1, the moles of FeCl\(_3\) formed will also be \( 0.573 \, \text{mol} \).
- Theoretical mass of FeCl\(_3\):
\[ 0.573 \, \text{mol} \times](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd32c0099-d35b-45af-b7af-24c06e9e82b9%2F37c1ad5c-80f7-471e-8bc3-c67c2ea5673c%2F516eaz_processed.jpeg&w=3840&q=75)
Transcribed Image Text:### Iron and Chlorine Reaction: Percent Yield Calculation
**Problem Statement:**
Iron metal reacts with chlorine gas, giving iron(III) chloride. The balanced chemical equation for this reaction is:
\[ 2 \, \text{Fe} (s) + 3 \, \text{Cl}_2 (g) \rightarrow 2 \, \text{FeCl}_3 (s) \]
**Question:**
If only 16.1 g of FeCl\(_3\) is obtained from 32.0 g of iron and excess Cl\(_2\), what is the percent yield?
**Solution Framework:**
To calculate the percent yield, follow these steps:
1. **Determine the Molar Masses:**
- Molar mass of Fe (iron): \( 55.85 \, \text{g/mol} \)
- Molar mass of FeCl\(_3\):
- Fe: \( 55.85 \, \text{g/mol} \)
- Cl: \( 35.45 \, \text{g/mol} \) (since there are three Cl atoms, multiply by 3)
Therefore, molar mass of FeCl\(_3\) = \( 55.85 + 3 \times 35.45 \)
= \( 55.85 + 106.35 \)
= \( 162.2 \, \text{g/mol} \)
2. **Calculate the Theoretical Yield:**
- From the balanced equation:
\[ 2 \, \text{Fe} \rightarrow 2 \, \text{FeCl}_3 \]
Therefore, the molar ratio of Fe to FeCl\(_3\) is 1:1.
- Moles of Fe used:
\[ \frac{32.0 \, \text{g Fe}}{55.85 \, \text{g/mol}} \approx 0.573 \, \text{mol Fe} \]
- Since the molar ratio is 1:1, the moles of FeCl\(_3\) formed will also be \( 0.573 \, \text{mol} \).
- Theoretical mass of FeCl\(_3\):
\[ 0.573 \, \text{mol} \times
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