Brawnerium-66 which has a half-life of 14.5 minutes. If I start with a 280 gram, how much time will have passed when only 35 grams is remaining of 280?

16- counting by fours

B. a graduated substance

Ithink that the answer is b

Hello! data: p (pressure) = 1.25 atmv (volume) = ? (in l)t (temperature) = 298 kn (number of mols) = 0.900 molesr (gas constant) = 0.082 (atm*l/mol*k)apply the data to the clapeyron equation (ideal gas equation), see: i hope this . =)