diDNealiseca diDNealiseca

10-09-2016
Mathematics

contestada

how long will it take for a 40.0 gram sample of i-131 (half-life = 8.040 days) to decay to 1/100 its original mass?

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Viktor326 Viktor326

10-09-2016

(1/2)^n=(1/100) n=6.645 Time taken= n*halflife. =6.645*8.040days =53.426days

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