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Viktor [21]
3 years ago
11

How long will it take for 100 grams of a substance with a half-life of 2 years to decay to a mass of 50 grams?

Chemistry
1 answer:
Elis [28]3 years ago
3 0

Answer:

<u>2 years</u> to decay to a mass of 50g.

Explanation:

given:

100g of substance with a half life of 2 years

to a mass of 50g

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

                          ln 2             0.693

Half life T1/2 = ----------  =  -----------

                              λ                  λ

where  λ = rate constant

The initial amount of 100 grams is decaying to a mass of 50 grams is half of its initial value.

Therefore, it will take 2 years for the decay.

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