The reaction A → 2B was studied and the following data were collected: Time (s) 0.00 10.0 20.0 30.0 40.0 [B] M 0.000 0.325 0.572 0.750 0.890 You can make a graph that presents the data and visually evaluate how the product's concentration develops over time. Also: a) Calculate the concentration change for every 10 seconds from 0.00 s to 40.00 s. Comment on how the rate of change changes and why? b) Calculate the concentration change between 10 and 20 s for the reactant. Comment how concentration change for the reactant relates to concentration change for the product.

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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The reaction A → 2B was studied and the following data were collected:
Time (s) 0.00 10.0 20.0 30.0 40.0
[B] M 0.000 0.325 0.572 0.750 0.890
You can make a graph that presents the data and visually evaluate how the product's
concentration develops over time. Also:
a) Calculate the concentration change for every 10 seconds from 0.00 s to 40.00 s.
Comment on how the rate of change changes and why?
b) Calculate the concentration change between 10 and 20 s for the reactant. Comment
how concentration change for the reactant relates to concentration change for
the product.

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