A sample of an alpha emitter having an activity of 0.18i is stored in a 25.0-mL sealed
Chapter 23, Problem 21.86(choose chapter or problem)
A sample of an alpha emitter having an activity of 0.18i is stored in a 25.0-mL sealed container at for 245 days.(a) How many alpha particles are formed during this time? (b) Assuming that each alpha particle is converted to a helium atom, what is the partial pressure of helium gas in the container after this 245-day period?
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