A sample of sodium-24 with an activity of 12 mCi is used to study the rate of blood flow
Chapter 0, Problem 5.32(choose chapter or problem)
A sample of sodium-24 with an activity of 12 mCi is used to study the rate of blood flow in the circulatory system. If sodium-24 has a half-life of 15 h, what is the activity after each of the following intervals?
a. one half-life
b. 30 h
c. three half-lives
d. 2.5 days
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