Answer to Question #96351 in General Chemistry for Brayden Angelina Oblak

Question #96351
a person of 60kg has 120g of potassium, of which 0.0123g is potassium-40. This results in an activity of 3.2x10^3 Bq. What is the decay constant
1
Expert's answer
2019-10-14T14:29:18-0400

The activity of potassium is"=3.2\\times10^3Bq"

As "\\frac{dN}{dt}=kN", where "k=" decay constant

"3.2\\times10^3=k\\times0.0123"

Hence, "k=2.60\\times10^5s^{-1}"


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