Air at sea level weighs about 1.2 kg per cubic meter. You can find that using the ideal gas law pV=mRT where p is pressure V is volume m is mass of gas R is the gas constant for air = universal gas constant/average molecular mass of air T is the temperature in absolute units. All of those are better in metric units, so p is in pascals, V is in cubic meters, m is in kilograms, T is in kelvins, and R is 8314/28.8 = 288 N-m/kg-K. At sea level, standard pressure is 101325 Pa, temperature is about 20 deg C or 293 K. For a volume of 1 cubic meter, m/V = p/RT = 101325 / (288 * 293) = 1.201 kilograms per cubic meter. Since you wanted to know gallons, 264.2 gallons is 1 cubic meter, and 2.204 lb in one kg, so 1.201 kg/m^3 * (1 m^3/264.2 gal) * (2.204 lb/kg) = 0.0100 lb/gal. Not a heckuva lot, but not zero. One thing to notice is that if you put a gallon of air on a scale, (in a wieghtless container, of course) you would measure zero, exactly. That's because the buoyancy caused by the surrounding air exactly counteracts the weight of the air in the container. If you pressurized the air in your gallon container to, say ten times the outside pressure (or 147.0 psi absolute, or 132.3 psi gauge) it would now weigh nine times 0.01, or 0.09 lb. Of course, the container that held all that pressure would have to weigh a lot more than 0.09 lb, so measuring the change would require a very good scale.

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Q: What is the weight of one gallon of air?

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Weight per gallon of one gallon asphalt

The weight of one gallon of chlorine bleach is 8.375 pounds!

It is roughly the same as the weight of a gallon of water, because the bouyancy force is equal to the weight of water displaced (the weight of the air being negligible). A UK gallon of water weighs almost exactly 10 pounds, while a US gallon weighs about 8.35 pounds.

1 gallon of air would have the buoyancy equal to the weight of 1 gallon of the fluid it is displacing. According to http://www.ehow.com/how-does_5145137_steel-but-steel-boat-float.html Example: 1 gallon of water weighs approx 9 (lbs) therefore 1 gallon of air would have 9 gallons of Buoyancy.

one gallon of eggs weighs 108.8 ounces

not just one gallon

One Imperial gallon weighs 34.0 newtons.

one gallon

The weight of one gallon of coconut oil is 7.7 pounds or 3.5 kilograms. In comparison, the weight of one gallon of milk is 9 pounds.

7.6 pounds/gallon

A gallon of what? The answer varies widely, depending on the material.

Gallon measures volume. Pound measures weight. A gallon of lead will weigh much more than a gallon of air. So a gallon cannot be converted to pounds.

The weight of 1 gallon of gasoline equals 5.8 to 6.5 lbs.

One gallon of pure water weighs 8.345 pounds.

A gallon of water weighs 8 pounds.

One US gallon of water weighs about 8.35 pounds.

One US gallon of water weighs about 8.35 pounds.

Gallons are volume, not weight. A gallon is 128 fluid ounces. The word ounce can refer to an ounce of volume (like the fluid ounce mentioned above), or an ounce of weight. An ounce's weight of air will have a greater volume than one gallon.

8.35 lb , the weight of one gallon of water , more than previously .

Good question but I can tell you that the weight of the oil has no bearing on the weight of the gallon. Look for a conversion chart and see what a gallon weighs of any liquid. Can be found in the front of your phone book or in a book at your local library or in a diet book. It is sold in 120lb. packages and there are 16 gallons per package. Therefore one gallon weighs 7.5 lbs. I believe 30-weight oil is 6.8 lbs/gal. One gallon of feathers does not weight the same as one gallon of water.......

One US gallon of gasoline is approximately 6.3 pounds

8.8

256lbs

The weight of one gallon of kerosene is 6.82 pounds.Based on a cubic foot of kerosene is 51 pounds and 7.48 gallons in a cubic foot.

The buoyant force is equal to the weight of the displaced fluid (Archimedes Principle). A gallon jug underwater will have a buoyant force equal to the weight of the displaced water: eight pounds. The total weight will also include the normal downward weight of the jug itself and the air it contains.