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

1 Answer
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...