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

1 Answer
Apr 28, 2016

Answer:

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#