Using a rate law rate of a certain reaction is given by the following rate law: rate=k[H₂][¹₂] this information to answer the questions below. What is the reaction order in H₂? What is the reaction order in 1₂? What is overall reaction order? at a certain concentration of H₂ and I2, the initial rate of eaction is 4.0 x 103 M/s. What would the initial rate of the eaction be if the concentration of H₂ were halved? Round our answer to 2 significant digits. me rate of the reaction is measured to be 0.070 M/s when H2] = 1.3 M and [1₂] = 1.9 M. Calculate the value of the rate onstant. Round your answer to 2 significant digits. nation 1169 Check OCT 13 k=OM¹ (@a tv 0%

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The image displays a section from a chemistry educational module titled "Using a rate law," focusing on determining reaction orders and calculating rate constants.

### Given Rate Law:
The rate of a certain reaction is given by the following rate law:
\[ \text{rate} = k[\text{H}_2][\text{I}_2] \]

### Questions to Answer:
1. **What is the reaction order in \(\text{H}_2\)?**  
   - **Answer:** 1

2. **What is the reaction order in \(\text{I}_2\)?**  
   - **Answer:** 1

3. **What is the overall reaction order?**  
   - **Answer:** 2

### Problem:
At a certain concentration of \(\text{H}_2\) and \(\text{I}_2\), the initial rate of reaction is \(4.0 \times 10^{-3} \, \text{M/s}\). What would the initial rate of the reaction be if the concentration of \(\text{H}_2\) were halved? Round your answer to 2 significant digits.

- **Unit:** \( \text{M/s} \)

### Calculation for Rate Constant:
The rate of the reaction is measured to be \(0.070 \, \text{M/s}\) when \([\text{H}_2] = 1.3 \, \text{M}\) and \([\text{I}_2] = 1.9 \, \text{M}\). Calculate the value of the rate constant \(k\). Round your answer to 2 significant digits.

- **Unit:** \( \text{M}^{-1} \cdot \text{s}^{-1} \)

### Buttons:
- **Explanation:** To provide detailed solution steps or theoretical explanations.
- **Check:** Likely for verifying calculated answers.

This module helps students understand and apply concepts related to reaction rates, rate laws, and how changes in concentrations affect the rate of chemical reactions.
Transcribed Image Text:The image displays a section from a chemistry educational module titled "Using a rate law," focusing on determining reaction orders and calculating rate constants. ### Given Rate Law: The rate of a certain reaction is given by the following rate law: \[ \text{rate} = k[\text{H}_2][\text{I}_2] \] ### Questions to Answer: 1. **What is the reaction order in \(\text{H}_2\)?** - **Answer:** 1 2. **What is the reaction order in \(\text{I}_2\)?** - **Answer:** 1 3. **What is the overall reaction order?** - **Answer:** 2 ### Problem: At a certain concentration of \(\text{H}_2\) and \(\text{I}_2\), the initial rate of reaction is \(4.0 \times 10^{-3} \, \text{M/s}\). What would the initial rate of the reaction be if the concentration of \(\text{H}_2\) were halved? Round your answer to 2 significant digits. - **Unit:** \( \text{M/s} \) ### Calculation for Rate Constant: The rate of the reaction is measured to be \(0.070 \, \text{M/s}\) when \([\text{H}_2] = 1.3 \, \text{M}\) and \([\text{I}_2] = 1.9 \, \text{M}\). Calculate the value of the rate constant \(k\). Round your answer to 2 significant digits. - **Unit:** \( \text{M}^{-1} \cdot \text{s}^{-1} \) ### Buttons: - **Explanation:** To provide detailed solution steps or theoretical explanations. - **Check:** Likely for verifying calculated answers. This module helps students understand and apply concepts related to reaction rates, rate laws, and how changes in concentrations affect the rate of chemical reactions.
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