Question: A sample of an alpha emitter having an activity of 0.18i is stored in a 25.0-mL sealed container at 22C for 245 days. (a) How

A sample of an alpha emitter having an activity of 0.18i is stored in a 25.0-mL sealed container at 22°C 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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