Impossible to answer unless you specify the height of the gas cloud.
One yard is 3 feet. Therefore a cubic yard is 9 cubic feet. 2 cubic yards will cover 18 cubic feet of stone.
To find the volume in cubic feet needed to cover 21,000 square feet, you would also need the height of the coverage area. The volume (cubic feet) is calculated by multiplying the area (square feet) by the height (feet). Without the height, it's not possible to determine the amount of cubic feet needed to cover 21,000 square feet.
To determine the number of bags needed to cover 250 square feet at 2 cubic feet per bag, you would first calculate the total volume required: 250 sq ft * 2 ft = 500 cubic feet. Then, divide the total volume required by the volume per bag: 500 cubic feet / 2 cubic feet per bag = 250 bags needed.
1 cubic yard equals 27 cubic feet. At a six inch depth 1 cubic foot will cover 2 square feet, so 27 cubic feet will cover 54 square feet.
To determine how many 40 lb bags of topsoil are needed to cover 12 cubic yards, first convert cubic yards to cubic feet. There are 27 cubic feet in a cubic yard, so 12 cubic yards equals 324 cubic feet. Assuming a 40 lb bag covers about 1.5 cubic feet, you would need approximately 216 bags (324 cubic feet ÷ 1.5 cubic feet per bag = 216).
1 [cubic] yard of concrete = 3*3*3 cubic feet = 27 cubic feet. To a depth of 6 inches = 1/2 foot the 27 cu ft would cover 27/(1/2) = 54 sq feet.1 [cubic] yard of concrete = 3*3*3 cubic feet = 27 cubic feet. To a depth of 6 inches = 1/2 foot the 27 cu ft would cover 27/(1/2) = 54 sq feet.1 [cubic] yard of concrete = 3*3*3 cubic feet = 27 cubic feet. To a depth of 6 inches = 1/2 foot the 27 cu ft would cover 27/(1/2) = 54 sq feet.1 [cubic] yard of concrete = 3*3*3 cubic feet = 27 cubic feet. To a depth of 6 inches = 1/2 foot the 27 cu ft would cover 27/(1/2) = 54 sq feet.
It depends upon how deep you want it covered. To cover it one inch deep would take 112 sq ft X 1/12 ft = 9.3 cubic feet = 2 bags @ 5 cubic feet each.
It depends how thick the gravel is being laid - at 4 inches thick, a cubic yard will cover 81 square feet.
You would need 31.88 cubic yards of topsoil to cover 855 sq feet at 6 inches deep.
47.55 cubic yards . 4" would be 5.23 cubic yards.
it will cover 3 cubic feet, or 9 feet, I am not sure how many square feet
If the question is "How many 2 cubic foot bags are there in 1 cubic yard the answer would go something like this; * a cubic yard is 3 feet X 3 feet X 3 feet, or 27 cubic feet in one cubic yard. * if each bag is 2 cubic feet it would take 27 cubic feet in on cubic yard / 2 cubic feet per bag = 13 1/2 bags.