3. The decomposition of a herbicide A in a water at 20° C is a 1st-order reaction with half-life of 2.0 months. What is a rate constant for this reaction? How long it will take for the concentration of herbicide to decrease from 1.6*106 M to 1*107 M?

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3. The decomposition of a herbicide A in a water at 20° C is a 1st-order reaction with half-life of 2.0 months. What
is a rate constant for this reaction? How long it will take for the concentration of herbicide to decrease from
1.6*106 M to 1*107 M?
Transcribed Image Text:3. The decomposition of a herbicide A in a water at 20° C is a 1st-order reaction with half-life of 2.0 months. What is a rate constant for this reaction? How long it will take for the concentration of herbicide to decrease from 1.6*106 M to 1*107 M?
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