3. The reaction: 2NOBr(g) --> 2NO(g) + Br2(g), has the rate law: Rate k[NOBr]2, where k = 0.055 L.mol-1.s-1. If the initial concentration of NOBr is 0.100 M, and there was no NO or Br2 at the beginning of the reaction, what is the concentration of Br₂ after 5.0 minutes? (A) 0.019 M (B) 0.031 M (C) 0.038 M (D) 0.062 M

Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
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Chapter11: Chemical Kinetics: Rates Of Reactions
Section: Chapter Questions
Problem 109QRT
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3. The reaction: 2NOBr(g) -->2NO(g) + Br2(g), has the rate law: Rate
= K[NOBr]², where k = 0.055 L.mol-¹.s-¹.
If the initial concentration of NOBr is 0.100 M, and there was no NO or
Br₂ at the beginning of the reaction, what is the concentration of Br₂ after
5.0 minutes?
(A) 0.019 M
(B) 0.031 M
(C) 0.038 M
(D) 0.062 M
Transcribed Image Text:3. The reaction: 2NOBr(g) -->2NO(g) + Br2(g), has the rate law: Rate = K[NOBr]², where k = 0.055 L.mol-¹.s-¹. If the initial concentration of NOBr is 0.100 M, and there was no NO or Br₂ at the beginning of the reaction, what is the concentration of Br₂ after 5.0 minutes? (A) 0.019 M (B) 0.031 M (C) 0.038 M (D) 0.062 M
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