Question

The volume of helium in a blimp is 6.28 × 109 milliliters. The density of helium in the blimp is 0.1786 . Find the mass of the helium in the blimp. (Hint: 1,000 L = 1 cubic meter.)

Answer 1

Answer : The mass of the helium in the blimp is, $1.12\times 10^6g$

Solution : Given,

Volume of helium in a blimp = $6.28\times 10^9ml=6.28\times 10^6L$

(1 L = 1000 ml)

Density of helium in a blimp = 0.1786 g/L

Formula used :

$Mass=Density\times Volume$

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

$Mass=Density\times Volume=(0.1786g/L)\times (6.28\times 10^6L)=1.121\times 10^6g$

Therefore, the mass of the helium in the blimp is, $1.12\times 10^6g$