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A 5 g/100ml solution of drug X is stored in a closed test tube at 250C. If the rate constant of degradation of the drug

A 5 g/100ml solution of drug X is stored in a closed test tube at 250C. If the rate constant of degradation of the drug is 0.05 day-1 , calculate the time for the drug concentration to degrade to 2.5 mg/mL.

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