At a certain temperature, the equilibrium constant K for the following reaction is 0.0041: NO3(g) + NO(g) 2 NO₂(g) Use this information to complete the following table. There will be very little NO3 and NO. Suppose a 18. L reaction vessel is filled with 0.61 mol of NO₂. What can you say about the composition of the mixture in the vessel at equilibrium? There will be very little NO₂. Neither of the above is true. What is the equilibrium constant for the following reaction? Round your answer to 2 significant digits. K = 0 2 NO₂(9) NO3(9)+NO (9) What is the equilibrium constant for the following reaction? Round your answer to 2 significant digits. K = 3 NO3(9)+3NO(g) 6 NO₂(9) X 3 ?

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### Understanding Chemical Equilibrium

At a certain temperature, the equilibrium constant \( K \) for the following reaction is 0.0041:

\[ \text{NO}_3(g) + \text{NO}(g) \rightleftharpoons 2\text{NO}_2(g) \]

Use this information to complete the following table.

#### Question 1
**Suppose a 18. L reaction vessel is filled with 0.61 mol of NO\(_2\). What can you say about the composition of the mixture in the vessel at equilibrium?**

- There will be very little NO\(_3\) and NO. (Selected)
- There will be very little NO\(_2\).
- Neither of the above is true.

#### Question 2
**What is the equilibrium constant for the following reaction? Round your answer to 2 significant digits.**

\[ 2\text{NO}_2(g) \rightleftharpoons \text{NO}_3(g) + \text{NO}(g) \]

\( K = \) [ ]

#### Question 3
**What is the equilibrium constant for the following reaction? Round your answer to 2 significant digits.**

\[ 3\text{NO}_3(g) + 3\text{NO}(g) \rightleftharpoons 6\text{NO}_2(g) \]

\( K = \) [ ]

### Explanation of the Graphs and Equilibrium Table

- The first section presents a scenario where the reaction occurs in an 18-liter vessel with an initial amount of 0.61 mol of NO\(_2\). The equilibrium state is described, and the student is asked about the composition of this mixture.
- The second part of the table requires the calculation of equilibrium constants for two given reactions derived from the original reaction, emphasizing the importance of rounding to two significant digits.

### Key Points

- **Equilibrium Constant (K):** A measure of the ratio of the concentrations of the products to the reactants at equilibrium.
- **Significant Digits:** Ensure calculations are accurate and rounded appropriately.
- **Reaction Direction:** Understanding how the equilibrium position changes with different reaction directions.
Transcribed Image Text:### Understanding Chemical Equilibrium At a certain temperature, the equilibrium constant \( K \) for the following reaction is 0.0041: \[ \text{NO}_3(g) + \text{NO}(g) \rightleftharpoons 2\text{NO}_2(g) \] Use this information to complete the following table. #### Question 1 **Suppose a 18. L reaction vessel is filled with 0.61 mol of NO\(_2\). What can you say about the composition of the mixture in the vessel at equilibrium?** - There will be very little NO\(_3\) and NO. (Selected) - There will be very little NO\(_2\). - Neither of the above is true. #### Question 2 **What is the equilibrium constant for the following reaction? Round your answer to 2 significant digits.** \[ 2\text{NO}_2(g) \rightleftharpoons \text{NO}_3(g) + \text{NO}(g) \] \( K = \) [ ] #### Question 3 **What is the equilibrium constant for the following reaction? Round your answer to 2 significant digits.** \[ 3\text{NO}_3(g) + 3\text{NO}(g) \rightleftharpoons 6\text{NO}_2(g) \] \( K = \) [ ] ### Explanation of the Graphs and Equilibrium Table - The first section presents a scenario where the reaction occurs in an 18-liter vessel with an initial amount of 0.61 mol of NO\(_2\). The equilibrium state is described, and the student is asked about the composition of this mixture. - The second part of the table requires the calculation of equilibrium constants for two given reactions derived from the original reaction, emphasizing the importance of rounding to two significant digits. ### Key Points - **Equilibrium Constant (K):** A measure of the ratio of the concentrations of the products to the reactants at equilibrium. - **Significant Digits:** Ensure calculations are accurate and rounded appropriately. - **Reaction Direction:** Understanding how the equilibrium position changes with different reaction directions.
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