Asked by cam
caffeine has a half-life of 4.6 hours in the human body.. How long would it take 125 milligrams tritium to decay to 22 milligrams?
Answers
Answered by
DrBob222
Pray tell what does caffeine have to do with tritium?
For tritium,
k = 0.693/t<sub>1/2</sub>
You will need to look up the half-life of tritium unless that is the "caffeine" half-life.
Substitute k into the below equation.
ln(No/N) = kt
Nl = 125
N = 22
k = from above calculation.
t = time. Solve for this. Note that the unit for time and the unit for half-life must be the same.
For tritium,
k = 0.693/t<sub>1/2</sub>
You will need to look up the half-life of tritium unless that is the "caffeine" half-life.
Substitute k into the below equation.
ln(No/N) = kt
Nl = 125
N = 22
k = from above calculation.
t = time. Solve for this. Note that the unit for time and the unit for half-life must be the same.
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