What is the density of methane at 28.5°C and 755.2 mmHg?

1 Answer
anor277
Jul 27, 2017

We solve the Ideal Gas equation for a #1*L# volume.....

Explanation:

#PV=nRT#....thus #PV="mass"/"molar mass"*RT#

And #P/(RT)xx"molar mass"="mass"/V=rho_(Cl_2)#

#((755.2cancel(*mm*Hg))/(760cancel(*mm*Hg*atm^-1))xx70.9*g*cancel(mol^-1))/(0.0821*(L*cancel(atm))/(cancel(K*mol^-1))xx301.7*cancelK)#

#~=2.8*g*L^-1.#

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