SOLUTION: I have a couple chemistry problems I do not know how to solve. I need to find the volume of 1.725 x 10^24 atoms of Ne(g). Any help you can give me will be greatly appreciated. Cin

Question 554216: I have a couple chemistry problems I do not know how to solve. I need to find the volume of 1.725 x 10^24 atoms of Ne(g). Any help you can give me will be greatly appreciated.
Cindy
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
It's a good thing you have a chemist here. (My name is KMST because I am a KeMiST).
A mole of an ideal gas has a volume of 22.4 liters at STP (standard temperature and pressure, 0 �C and 760 mm Hg).
A mole of anything is 6.022 x 10^23 units.
Neon gas is as ideal as you can get. It is made of single atoms (monoatomic molecules), so you would have 6.022 x 10^23 atoms (one mole) in 22.4 liters of Ne(g) at STP.
The number of moles you have is

At STP, the gas would occupy a volume, in liters) of
=
= =
The volume of gases changes with temperature and pressure.
If no conditions were specified, I would answer "62.4L at STP".
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