What is the mass of a sample of neon gas if the volume is 10 L at STP?

1 Answer
anor277
Jul 25, 2018

Well #"STP"# specifies #100*kPa# and #273.15*K#...

Explanation:

And so we solve for #n_"moles of gas"# in the Ideal Gas equation, and of course we have to fish out an appropriate gas constant...

#n=(PV)/(RT)=(100*kPaxx10*L)/(8.314*L*kPa*K^-1*mol^-1xx273.15*K)#

#=0.440*mol#

And thus a mass of #0.440*molxx20.18*g*mol^-1#...approx. #9*g#...

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