Dinitrogen pentoxide decomposes via a first order reaction. Rate = k[N,Os], k = 6.93 × 10*3 s-1 The concentration of N,O5 is initially 0.200 mol/L. After 100 s it has dropped to 0.100 mol/L and after 200 s it has dropped to 0.0500 mol/L. What is the concentration after 150 s?

Dinitrogen pentoxide decomposes via a first order reaction. Rate = k[N,Os], k = 6.93 × 10*3 s-1 The concentration of N,O5 is initially 0.200 mol/L. After 100 s it has dropped to 0.100 mol/L and after 200 s it has dropped to 0.0500 mol/L. What is the concentration after 150 s?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

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Question

Dinitrogen pentoxide decomposes via a first order reaction.
Rate = k[N2O5], k= 6.93 × 10-3 s-1
The concentration of N2O5 is initially 0.200 mol/L. After 100 s it has dropped to 0.100 mol/L and after 200 s it has dropped to 0.0500 mol/L. What is the concentration after 150
s?
HOW DO WE GET THERE?
Use the first order concentration-time equation to determine [N2O5] remaining after 150 s.
[N2O5]; = 150
= 0.700
X mol/L

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