Question

A helium filled balloon has a volume of 4.5 m^3. What mass of helium does it hold if the density of helium is 1.8 x 10^-4 g/cm^3?

Answer 1

mass of the helium gas will be
`=8.1* 10^(-7)kg`

Step-by-step explanation:

We have given volume of the helium
`V=4.5m^3`

Density of helium gas
`d=1.8* 10^(-4)cm^3=1.8* 10^(-10)m^3`

We have find the mass of the helium gas

We know that mass is given by mass = volume×density

So mass =
`4.5* 1.8* 10^(-10)=8.1* 10^(-10)gram=8.1* 10^(-7)kg`

So mass of the helium gas will be
`=8.1* 10^(-7)kg`