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The rate law for the following reaction at some temperature is given below. 2 NOBr( g ) 2 NO( g ) + Br 2 (

The rate law for the following reaction at some temperature is given below.

2 NOBr(g) 2 NO(g) + Br₂(g)

(a) If the half-life for this reaction is 2.00 s when [NOBr]₀ = 0.900 M, calculate the value of k for this reaction.
(b) How much time is required for the concentration of NOBr to decrease to 0.198 M?

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