Answer :
A container gas expands to fill a 3l container and has a mass of 129g its density is equal to 0.043 [tex]kgm^{-3}[/tex]
Let's understand the answer in detail
Density is equal to the mass of a substance divided by its volume. The SI unit of density is Kg/m3. Other units of density are g/cm3, g/mL, kg/L
The formula we are using is going to be
D=m/v, where
D= density
m=mass
V=volume
The data that is given to us states that
mass = 129g
volume= 3 L
density = ?
Now we will put the values in the formula,
d= m/v
d = 0.129 Kg / 3L
d = 0.043 Kg / L
Therefore the density of the gas is 0.043 Kg / L.
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