Weight of air

What is the weight of air in the living room measuring width 10 m length 3 m and height 3.3 m? Air density is ρ = 1.2 kg/m3.

Correct result:

m =  118.8 kg


a=10 m b=3 m c=3.3 m  ρ=1.2 kg/m3  V=a b c=10 3 3.3=99 m3  m=ρ V=1.2 99=5945=5945 kg=118.8 kg

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