The oxidation of HBr to Br 2 by the reaction 4HB1(g) + O 2(g) 2H 20(g) + 2Br 2(g) is thought to occur by the mechanism HBr + O 2 HOOBR (1) HOOBR + HBr 2HOBR (2) HOBR + HBr H2O + Br 2 (3) > What is the predicted rate law for step 2? Rate = k[HBr]2 Rate = k [HOBr]2 Rate = k[HOOBr][HBr] Rate = k[HBr][O2] %3D

Chemistry
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Chapter1: Chemical Foundations
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**Question 5**

The questions that follow are based on the reaction and mechanism below.

The oxidation of HBr to Br\(_2\) by the reaction:

\[ 4\text{HBr(g)} + \text{O}_2\text{(g)} \rightarrow 2\text{H}_2\text{O(g)} + 2\text{Br}_2\text{(g)} \]

is thought to occur by the mechanism:

1. \(\text{HBr} + \text{O}_2 \rightarrow \text{HOOBr}\)
2. \(\text{HOOBr} + \text{HBr} \rightarrow 2\text{HOBr}\)
3. \(\text{HOBr} + \text{HBr} \rightarrow \text{H}_2\text{O} + \text{Br}_2\)

What is the predicted rate law for step 2?

- ☐ Rate = \(k[\text{HBr}]^2\)
- ☐ Rate = \(k[\text{HOBr}]^2\)
- ⦿ Rate = \(k[\text{HOOBr}][\text{HBr}]\)
- ☐ Rate = \(k[\text{HBr}][\text{O}_2]\)
Transcribed Image Text:**Question 5** The questions that follow are based on the reaction and mechanism below. The oxidation of HBr to Br\(_2\) by the reaction: \[ 4\text{HBr(g)} + \text{O}_2\text{(g)} \rightarrow 2\text{H}_2\text{O(g)} + 2\text{Br}_2\text{(g)} \] is thought to occur by the mechanism: 1. \(\text{HBr} + \text{O}_2 \rightarrow \text{HOOBr}\) 2. \(\text{HOOBr} + \text{HBr} \rightarrow 2\text{HOBr}\) 3. \(\text{HOBr} + \text{HBr} \rightarrow \text{H}_2\text{O} + \text{Br}_2\) What is the predicted rate law for step 2? - ☐ Rate = \(k[\text{HBr}]^2\) - ☐ Rate = \(k[\text{HOBr}]^2\) - ⦿ Rate = \(k[\text{HOOBr}][\text{HBr}]\) - ☐ Rate = \(k[\text{HBr}][\text{O}_2]\)
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