Rates of Radioactive Decay
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A one- milligram sample of Cu-64 (nuclear mass =63.92 amu) has an activity of 3.82*10^3 Ci.
1a) How many atoms are in the sample?
b) What is the decay rate in atoms/s?
c) What is the rate constant in min-1?
d) What is the half-life in minutes?
2) What percentage of Cu-64 will decay in 4.00hr?
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Solution Summary
This a tutorial on how to calculate the rates of decay.
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(1)
The nuclear mass of is where
Thus, a single atom mass is:
Thus, in a sample we have:
So in this sample we have atoms of
(2)
A unit of one Ci is given by:
So the decay ...
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