Answer:
0.0481 kg.
Explanation:
First, we need to find the volume of the room.
15 x 18 x 8 = 1350
The volume of the room is 1350 ft³
Now, we convert feet to centimeters
1350 x 30.48 = 41,148
The volume is 41,148 cm³
1 cm³ = 1 mL
So we can say that the volume of the room is also 41,148 mL
Then, we convert milliliters to liters
41,148 ÷ 1,000 = 41.148
There are 41.148 liters of air in the room
We multiply the air's density with volume in liters
41.148 x 1.168 = 48.060864
There are 48.060864 grams of air in the room
Finally, convert grams to kilograms
48.060864 ÷ 1,000 = 0.048060864
0.048060864 kilograms of air are in the room.