Asked by sara
Radioactive substances decay by first-order kinetics. How many years would be required for a sample containing strontium-90 to decrease to 58.32% of its initial activity? The half-life of strontium-90 is 2.88e1 years.
Answers
Answered by
DrBob222
k = 0.693/t<sub>1/2</sub>
Substitute k into the below.
ln(No/N) = kt
No = 100
N = 58.32
K from above.
Solve for t in years.
Substitute k into the below.
ln(No/N) = kt
No = 100
N = 58.32
K from above.
Solve for t in years.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.