Question

Asked Nov 18, 2019

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A 1.55 g sample of an isotope has a half-life of 3.8 days. What mass of sample is left after 5.5 days?

t_{1/2}=0.693/k

ln(N_{t}/N_{0})=-kt

Answer in the form x.yz g

Step 1

Given that,

Initial amount of sample = 1.55g

Half life time = 3.8 days

Time = 5.5 days

Step 2

Now, you calculate the remaining amount of sample ofter 5.5 days

Step 3

Now,

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