One cubic foot of water (at 32 °F) weighs approximately 62.42 pounds. (http://ga.water.usgs.gov/edu/waterproperties.html). Multiply that number by 12,000, and you get 749,040 pounds.
So, at 32 °F, 12,000 cubic feet of water weighs 749,040 pounds.
1200cc of water should weigh 1.2kg at around 20.5 degrees celsius. The reason that temperature plays a part is that water expands and contracts due to temperature. If the water temperature is 50 deg. C then the volume would be around 1190cc, obviously weighing less.
2,500 cubic feet of non-seawater weighs about 78.1 tons.
More info needed. How much does 0.4 cubic feet of what weigh? Air? Lead? Water? Dirt?
75 US gallons of water equates to 10.03 cubic feet.
There are about 17,210,000 gallons of water in 2.3 million cubic feet.
180/62.5 = 2.88 cubic feet
8,000 gallons of water equates to 1,069.4 cubic feet.
2.5 cubic feet of water weighs about: 156 pounds.
2.25 cubic feet of water weighs about 140 pounds.
The weight of 2.25 cubic feet of water is approx 4495 pounds-force (lbf).
More info needed. How much does 0.4 cubic feet of what weigh? Air? Lead? Water? Dirt?
The weight of any volume of water will depend on the gravitational force acting upon it. 57 cubic feet of water would weigh nothing in a spaceship, for example.
It all depends on what you have in the cubic feet. -- If the cubic feet are full of air, they weigh about 8 pounds. -- If they're full of water, they weight about 6,243 pounds (3.1 tons). -- If they're full of lead, they weigh about 70,793 pounds (35.4 tons). -- If the cubic feet are completely empty, they weigh exactly zero.
Roughly 72 pounds.
Depends on the size of the aquarium. Water weights 10 pounds per gallon.
1 cubic yard = 27 cubic feet1 cubic foot = 1,728 cubic inches231 cubic inches = 1 gallon25,000 gallons = 5,775,000 cubic inches = 3,342.014 cubic feet = 123.778 cubic yards
If the weight is 62.5, then it weighs 62.5
1 248.538 214 8 Pounds
2500 btu per cubic foot of vapor.