Concentration/Time RelationshipsRate of removal of Tylenol = k [Tylenol], k = 0.21 hr-1. If initial [Tylenol] = 8.61 x 10-4 M: What is the blood conc. when you take another dose in 4 hrs; How long will it take to drop the blood conc. by 90% of Co or to 8.61 x 10-5 M?

Use the first order integrated rate law

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