How many molecules are there in 12dm3 of propane gas ,C3H8,measured at r. t.p?​

Adozen is 1221/12 = 1.751.75 x 12 = 21therefore, 1.75 is the answer.

Well to my expert knowledge and my exquisite calculations i think the the negative ion # 412 is the key to sucess

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 . =)