Asked by someone help me please

Calculate the density of Argon (Ar) gas at 400.0K and 1.23 atm.
Answered by DrBob222
P*molar mass = density*RT
density will be in g/L.
Answered by please help me please
what is p and what is RT
Answered by DrBob222
Aw C'mon. P is pressure in atm, R is the gas constant in L and atm, T is kelvin temperature.
This is just a rearrangement of PV = nRT.
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