Westonci.ca is your go-to source for answers, with a community ready to provide accurate and timely information. Explore a wealth of knowledge from professionals across various disciplines on our comprehensive Q&A platform. Join our Q&A platform to connect with experts dedicated to providing accurate answers to your questions in various fields.
Sagot :
Answer:201.9 grams
Explanation:
To determine how many grams of Cl₂ will be produced along with 250.0 kJ of heat in the given reaction, we need to follow these steps:
1. **Understand the reaction and its enthalpy change:**
The given reaction is:
\[
\text{PCl}_5(g) + 87.9 \, \text{kJ} \rightarrow \text{PCl}_3(g) + \text{Cl}_2(g)
\]
This indicates that 87.9 kJ of heat is required to produce 1 mole of Cl₂.
2. **Calculate the number of moles of Cl₂ produced with 250.0 kJ of heat:**
Using the given enthalpy change, we can set up a proportion to find the moles of Cl₂ produced by 250.0 kJ of heat:
\[
\frac{1 \text{ mole of Cl}_2}{87.9 \, \text{kJ}} = \frac{n \, \text{moles of Cl}_2}{250.0 \, \text{kJ}}
\]
Solving for \(n\):
\[
n = \frac{250.0 \, \text{kJ}}{87.9 \, \text{kJ/mole}}
\]
\[
n \approx 2.844 \, \text{moles of Cl}_2
\]
3. **Convert moles of Cl₂ to grams:**
The molar mass of Cl₂ is calculated as follows:
- The atomic mass of Cl (chlorine) is approximately 35.5 g/mol.
- Since Cl₂ consists of two chlorine atoms, its molar mass is \( 2 \times 35.5 \, \text{g/mol} = 71.0 \, \text{g/mol} \).
Now, we convert moles to grams:
\[
\text{Mass of Cl}_2 = n \times \text{molar mass of Cl}_2
\]
\[
\text{Mass of Cl}_2 = 2.844 \, \text{moles} \times 71.0 \, \text{g/mol}
\]
\[
\text{Mass of Cl}_2 \approx 201.964 \, \text{g}
\]
Therefore, approximately 201.964 grams of Cl₂ will be produced along with 250.0 kJ of heat in the given reaction.
Thanks for using our service. We aim to provide the most accurate answers for all your queries. Visit us again for more insights. We hope you found this helpful. Feel free to come back anytime for more accurate answers and updated information. Find reliable answers at Westonci.ca. Visit us again for the latest updates and expert advice.
