Topic:half-life decay 2.80moles of a radioactive element was originally present in a given sample of compound.if after 45.6moles of it remain,find the half life of this element?

1 Answer
Feb 28, 2018

Violates every law of the universe.


You can't start with less (2.80 moles) and end with more (45.6 moles). Unless, of course, somebody slyly added some amount of that radioactive element when we weren't looking (it could've been a chemical reaction that produces this element as well!). In that case, we need more information about that reaction before we proceed to predict anything at all.