Answer: The mass of the helium blimp is 1.126 kg.
Step-by-step explanation:
Density is defined as the ratio of mass and volume.
Mathematically,

We are given:
Density of the helium blimp =

Volume of the helium blimp =
(Conversion factor:
)
Mass of the helium blimp = ? kg
Putting values in above equation, we get:

Hence, the mass of the helium blimp will be 1.126 kg.