A particular reactant decomposes with a half-life of 105 s when its initial concentration is 0.272 M. The same reactant decomposes with a half-life of 223 s when its initial concentration is 0.128 M. Determine the reaction order. 0 1 2 What is the value and units of the rate constant for this reaction? k = 0.0031 Incorrect Units M-¹. s-1

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