scoobzoob scoobzoob

27-05-2022
Chemistry

contestada

What is the half-life of an isotope if after 14 days you have 31.25 g remaining from a
250.0 g sample?

Respuesta :

jsimpson11000 jsimpson11000

07-06-2022

Answer:

4 2/3 days

Explanation:

31.25 = 250 ( 1/2)^n solve for n

31.25/250 = 1/2 ^n log both sides to find n = 3 half lives

14 days = 3 half lives

14/3 = 4 2/3 day half life

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