Homework Answers
half life = t1/2 = 7.20 sec
k=0.693/t1/2 = 0.693/7.2 = 0.096 sec-1
initial amount N0 = 25.3 mg
time elapsed = 14.3 sec
final amount Nt = N0 * exp(-0.693*t/t1/2) = 25.3 * exp (-0.693*14.3/7.2) = 25.3*0.25 = 6.325 mg
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