Under standard conditions,the density of air is 1.29 kg/m3.What is the mass of the air inside a room measuring 4.0 m × 3.0 m × 2.0 m?
A) 0.32 kg
B) 3.1 kg
C) 31 kg
D) 1.9 kg
E) 19 kg
Correct Answer:
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