Question

the volume of helium in a blimp is 6.28 x 10^9 millimeters. the density of helium in the blimp is .1786 kilogram/meter^3. find the mass of the helium in the blimp.

Answer 1

Answer : The mass of the helium in the blimp is, 1.1216 Kg

Solution : Given,

Volume of helium in the blimp = $6.28\times 10^{9}mm^3=6.28m^3$

conversion : $1mm^3=10^{-9}m^3$

Density of helium in the blimp = $0.1786Kg/m^3$

Formula used :

$Density=\frac{Mass}{Volume}$

Now put all the given values in this formula, we get the mass of helium in the blimp.

$0.1786Kg/m^3=\frac{Mass}{6.28m^3}$

$Mass=1.1216Kg$

Therefore, the mass of the helium in the blimp is, 1.1216 Kg