Sodium Bicarbonate, NaHCO3: Specific Gravity 0.97
Thus, 60.555 122 016 pound/cubic foot
Soda ash and cubic-saltpeter are the chemicals found in natron (mixture of sodium carbonate decahydrate and sodium bicarbonate).
14,300 pounds. Sand has a density of 100 pounds per cubic foot.
It could be pounds per cubic inch, or pounds per cubic foot, or tons per cubic yard. The only substance I know in fps is water which is 62.4 pounds per cubic foot.
http://www.jtbaker.com/msds/englishhtml/s4034.htm The specific gravity of Sodium Hydroxide (NaOH) is 2.13. The density of Water (H20) is 62.43 lbm·ft−3. So, the density of NaOH = 2.13 * 62.43 = 132.9759 lb/ft^3
It ranges from 0.033 pounds per cubic inch to 0.043 pounds per cubic inch.
There is no such thing as a 'cubic square inch'. The density of aluminum is 0.0858 pound per cubic inch. (rounded)
Stainless Steel 321 has density of 0.29 pounds per cubic inch, which is 8.0272 grams per cubic cm.
You need to find the density of helium in pounds per cubic foot. Then since density is mass/volume, divide the mass by the density. You may find getting the density into the units you need to use a challenge.
0.4 pounds per cubic feet - a very massive gas!
g/c3 (grams per cubic centimeter) or lb/ft3 (pounds per cubic foot)
The density is 50 lbs/yards3
The density of PVC is 1390kg/m3