Drug X becomes ineffective after 50% decomposition. The original concentration of drug in a bottle was 16 mg / mL which becomes 4 mg / mL in 12 months. The expiry time of the drug in months is _______

Question

Drug X becomes ineffective after 50% decomposition. The original concentration of drug in a bottle was 16 mg / mL which becomes 4 mg / mL in 12 months. The expiry time of the drug in months is __________ Assume that the decomposition of the drug follows first order kinetics.

TestHub · Accepted Answer

Drug X 1st order ​ Product Initial concentration of drug = 16 mg / mL Concentration of drug after 12 months = 4 mg / mL Half life of drug = 6 months Drug become ineffective after 50\% decomposition. The expiry time of drug = 6 months

Chemistry - Chemical Kinetics Question with Solution | TestHub

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