the half life of the radio active isotope is 3 hrs .what mass out of 100grms is left after 15 hrs

#Chemistry #Chemistry of class 12 level

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the half life of the radio active isotope is 3 hrs .what mass out of 100grms is left after 15 hrs

Ganesh 29th Apr, 2020

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Answer (1)

Harsha Sinha 29th Apr, 2020

Hi there,

The answer is 3.125 grams.

Using the formula

N(t) =N0(1/2) ^t/t1/2.

N(t) remaining

No initial

t time elapsed

t1/2 half life of substance.

I hope this help

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