fetiro4660 fetiro4660

21-11-2020
Chemistry

contestada

There are 5.0g of I-131 left after 40 days. How many grams were in the original sample if the half-life is 8 days?

Respuesta :

natattack04 natattack04

21-11-2020

5.0=mo(1/2) ^ 5
5.0=mo (.031)
about 160/161.29

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