Concentration/Time Relations
Human body has 5L of blood. Thus, Initial [Tylenol] = Co = 8.61 x 10-4 M (confirm this!)
Rate of removal of Tylenol is k = 0.21 hr-1
What is conc. when you need to take another dose in 4 hours?
How long will it take to drop the conc. by 90% of Co
(10% is left or 8.61 x 10-5 M)?