Nothing
2.065 pounds per cubic yard
About 2 pounds
The weight of air at sea level is approximately 0.075 pounds per cubic foot. One cubic yard is equal to 27 cubic feet, so the weight of air per cubic yard at sea level would be approximately 2.025 pounds.
The mass of the air would be 984g at 25C (temperature also has an effect).
The density of dry air is 1.29 grams per liter (.07967 pounds per cubic foot) at 32° Fahrenheit (0° Celsius), average sea level, and average barometric pressure (29.92 in of mercury [760 millimeters]). The weight of 1 cubic foot of dry air at 1 atmosphere of barometric pressure is:Temperature (Fahrenheit)Weight per cubic foot (pounds)50° 0.0778860°0.0764070°0.07495
One cubic foot of air can float approximately 0.0807 pounds (or about 36.5 grams) of weight due to its buoyancy in a denser medium, like water. This is based on the average density of air at sea level, which is about 0.0807 pounds per cubic foot. In practical terms, this means that if you have a balloon filled with air that displaces one cubic foot, it can lift that amount of weight.
This depends on what substance and at what temperature at sea level. Cubic feet is a volume. Kilogram is a weight. Give me a substance and I'll tell you how.
The weight of oxygen per cubic inch is approximately 0.0899 grams.
Specific weight is the weight of the material per unit volume. Water has the specific weight of 62.43 pounds per cubic foot or 9.807 Newtons per cubic meter.
One cubic foot of air at sea level weighs approximately 0.08 pounds. Therefore, in one CFM (cubic foot per minute) of air, there would be approximately 0.08 pounds of air.
there are 27 cubic feet in a cubic yard hence 420 divide by 27 equals 15.55555
If you take the average weight of all of the molecules in one cubic foot of air and add them together you reach 0.0807 pounds. This number can fluctuate with temperature and variations in the composition in the air.