The density of this gas is 0.20 g/L.
What is density?
The density of a substance is the measure of how densely it is packed together. The mass per unit volume is how it is formally defined. The symbol for density: d
The density formula is given by d = m/v, where m is the object's mass and v is its volume.
Given that,
Molar volume of non ideal He gas (v) = 20 L/mol
Molar mass of He gas (m) = 4.0 g/mol
As we know, density of this gas (d) = mass (m) / volume (v)
= 4.0g /20L
= 0.20 g/L
Thus, density of this gas is 0.20 g/L
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