Depends if it is filtered or unfiltered. Unfiltered it weighs 10 lbs/gallon. There is no filtered data available..
They weigh about 1 ounce !
6
the weigh 1-7 ounces
You cannot weigh an area. Just as you cannot weigh a distance. (How much does one centimeter weigh?)
how much does 1 cubic yard of carpeting with padding weigh
Ladybugs weigh like 1 gram.
Quartz weigh about 1 and a half pounds
1 1/4
How much does 1 cubic meter of fuel oil weigh
you would weigh 1 pound no matter how big you are
they weigh about 5 pounds