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puteri [66]
4 years ago
9

The mass of a radioactive substance follows a continuous exponential decay model. a sample of this radioactive substance has an

initial mass of 9575 kg and decreases continuously at a relative rate of 12% per day. find the mass of the sample after five days.
Chemistry
1 answer:
pashok25 [27]4 years ago
3 0
Exponential decay is a very common process especially when we are talking about radioactive materials. So, there is already a common formula for this type of behavior which is written below:

A = Pe^-rt
where
A is the amount left after time t
P is the initial amount at t=0
r is the rate

Substituting the values,
A = (9575 kg)(e^-0.12*5)
<em>A = 5,254.87 kg</em>
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