A 53.8-mg sample of sodium perchlorate contains
Chapter 2, Problem 84IE(choose chapter or problem)
Problem 84IE
A 53.8-mg sample of sodium perchlorate contains radioactive chlorine-36 (whose atomic mass is 36.0 amu). If 29.6% of the chlorine atoms in the sample are chlorine-36 and the remainder are naturally occurring nonradioactive chlorine atoms, how many disintegrations per second are produced by this sample? The half-life of chlorine-36 is 3.0 × 105 yr.
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