How many liters of helium gas are there in 0.003 L of He at STP?

1 Answer
Apr 28, 2016

I presume you want to know the molar quantity of 3xx10^-3*L at "STP".

Explanation:

It is well known that at "STP" 1 mol of Ideal Gas will occupy a volume of 22.4*L. (This will even be given as supplementary material in most examinations)

Thus "Moles of helium" = (3xx10^-3*cancelL)/(22.4*cancelL*mol^-1) = ??*mol