Consider the flasks in the following diagram. 2.50 L H2 1.00 LN2 455 torr 0.340 atm What are the final partial pressures of H2 and N2 after the stopcock between the two flasks is opened? (Assume the final volume is 3.50 L.) Pa, torr PN, torr What is the total pressure (in torr)? | torr

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Chapter1: Chemical Foundations
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**Educational Content: Gas Pressure and Volume**

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**Flask Diagram Explanation:**

In the diagram, there are two connected flasks. 

- The first flask (on the left) contains 2.50 liters of hydrogen gas (H₂) at a pressure of 455 torr.
- The second flask (on the right) contains 1.00 liter of nitrogen gas (N₂) at a pressure of 0.340 atm.

The flasks are connected by a stopcock, which is initially closed. Upon opening the stopcock, the gases will mix, and their partial pressures and the total pressure within the system will change. The final total volume when the stopcock is opened is 3.50 liters.

**Questions for Calculation:**

1. **Final Partial Pressures:**

   - \( P_{H_2} = \_\_\_\_\_ \) torr
   - \( P_{N_2} = \_\_\_\_\_ \) torr

   After the stopcock is opened, calculate the final partial pressures of hydrogen (H₂) and nitrogen (N₂).

2. **Total Pressure:**

   - What is the total pressure (in torr) after the gases have mixed?

   - Total Pressure: \_\_\_\_\_ torr

---

**Note:**

To solve this problem, use the ideal gas law and the concept of partial pressures assuming ideal behavior and no reaction between gases. Convert all pressures to the same units before performing calculations.
Transcribed Image Text:**Educational Content: Gas Pressure and Volume** --- **Flask Diagram Explanation:** In the diagram, there are two connected flasks. - The first flask (on the left) contains 2.50 liters of hydrogen gas (H₂) at a pressure of 455 torr. - The second flask (on the right) contains 1.00 liter of nitrogen gas (N₂) at a pressure of 0.340 atm. The flasks are connected by a stopcock, which is initially closed. Upon opening the stopcock, the gases will mix, and their partial pressures and the total pressure within the system will change. The final total volume when the stopcock is opened is 3.50 liters. **Questions for Calculation:** 1. **Final Partial Pressures:** - \( P_{H_2} = \_\_\_\_\_ \) torr - \( P_{N_2} = \_\_\_\_\_ \) torr After the stopcock is opened, calculate the final partial pressures of hydrogen (H₂) and nitrogen (N₂). 2. **Total Pressure:** - What is the total pressure (in torr) after the gases have mixed? - Total Pressure: \_\_\_\_\_ torr --- **Note:** To solve this problem, use the ideal gas law and the concept of partial pressures assuming ideal behavior and no reaction between gases. Convert all pressures to the same units before performing calculations.
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