Question

The half-site of a certain tranquilizer in the bloodstream lis 21 hours. How long will it take for the drug to decay to 95% of the original dosage? Use the exponential decay model, A-ASEM to solve hours (Round to one decimal place as needed)

Answer 1

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Half life = 21 hour kiven, Solutionis A= 1 Ao =2 t=a.1 into 1 subtitute the of formula A =Ą e So, 2 ek(21) 1 - K(21) ze Inl/) 21 ka -0.033007 Hence, the function is A = A * -0.083007(4) Now subtitute A=0.95 . Ao = 1 into equo 0.95= 1 e-0.03300714) {"the=1 In(0.95) = -0.03300 71t:) /se ta In 20.95) 0.033007 to 1.6 Ars. Hence, It will take 1.6 hours to decay to 95%. original Ans. of the dosage.