Ideal gas law is valid only for ideal gas not for vanderwaal gas. Therefore, correct option is option B that is CHCl[tex]_3[/tex]. Ideal gas is a hypothetical gas.
Ideal gas equation is the mathematical expression that relates pressure volume and temperature. There is no force of attraction between the particles.
Mathematically the relation between Pressure, volume and temperature can be given as
PV=nRT
where,
P = pressure of gas sample = 850 torr=1.11atm
V= volume of gas sample =0.918 L
n =number of moles of gas sample=?
T =temperature of gas =308K
R = Gas constant = 0.0821 L.atm/K.mol
Substituting all the given values, we get
1.11atm×0.918 L =n× 0.0821×308
On calculation we get
1.018=n×25.28
n=0.04moles
Molar mass =mass/moles
Molar mass = 4.84 g/0.04
=119. 4g/mol
Therefore, correct option is option B.
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