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August 1, 2014

Homework Help: chemistry

Posted by saud on Friday, November 18, 2011 at 9:28pm.

calculate the half-life of a first- order reaction if the concentration of the reactant is 0.0396 M at 12 seconds after the reaction starts and is 0.00579 M at 47 after the reaction starts. How long does it take for the reactant concentration to decrease to 0.00269 M

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