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qwertylol12345
10.01.2020 •
Chemistry
At the beginning of an experiment, a scientist has 176 grams of radioactive goo. after 165 minutes, her sample has decayed to 5.5 grams.
what is the half-life of the goo in minutes?
find a formula for g(t) , the amount of goo remaining at time t.g(t)=?
how many grams of goo will remain after 50 minutes?
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Ответ:
An = Aoe^-kt
We use this equation for the solution. We do as follows:
5.5 = 176e^-k(165)
k = 0.02
What is the half-life of the goo in minutes?
0.5 = e^-0.02t
t = 34.66 minutes <HALF-LIFE
Find a formula for G(t) , the amount of goo remaining at time t.G(t)=?
G(t) = 176e^-0.02t
How many grams of goo will remain after 50 minutes?
G(t) = 176e^-0.02(50) = 64.75 g
Ответ:
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