# Problem: Consider the following reaction: 2HBr (g) → H2 (g) + Br2 (g) Part A In the first 23.0 s of this reaction the of HBr dropped from 0.550 M to 0.457 M. Calculated the average rate (M•s-1) of the reaction in this time interval.  Express your answer using two significant figures. Part BIf the volume of the reaction in part (a) was 1.50 L. what amount of Br2 (in moles) was formed during the 15.0 s of the reaction?  Express your answer using two significant figures.

###### FREE Expert Solution
80% (244 ratings)
###### FREE Expert Solution

PART A

We can express the average rate of reaction by the change in concentration HBr divided by the change in time and its coefficient in the balanced reaction.

80% (244 ratings) ###### Problem Details

Consider the following reaction:

2HBr (g) → H2 (g) + Br2 (g)

Part A

In the first 23.0 s of this reaction the of HBr dropped from 0.550 M to 0.457 M. Calculated the average rate (M•s-1) of the reaction in this time interval.  Express your answer using two significant figures.

Part B

If the volume of the reaction in part (a) was 1.50 L. what amount of Br2 (in moles) was formed during the 15.0 s of the reaction?  Express your answer using two significant figures.

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Average Rate of Reaction concept. You can view video lessons to learn Average Rate of Reaction. Or if you need more Average Rate of Reaction practice, you can also practice Average Rate of Reaction practice problems.

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Our tutors rated the difficulty ofConsider the following reaction: 2HBr (g) → H2 (g) + Br2 (g)...as medium difficulty.

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Based on our data, we think this problem is relevant for Professor Hartman's class at MONTANA.