That depends on the type material you are referring to. Also, these are two different types of measurements. One is volume the other is weight or mass. Please edit your question to include more context or details.
3.5
0.12 gallon.
About 1/8 of a gallon of water weighs 1 pound.
One pound of steam condenses back to one pound of liquid water. Since one gallon of water weighs 8.337 pounds, simply divide the weight of the condensate by 8.337 to find out how many gallons of condensate you have.
6 pounds
Approximately 1/8 of a US gallon of water in a pound
It depends on the concentration of the juice.
69
7.1 gallons @ 4.2lbs per gallon.
There are a total of eight pounds in each gallon. By dividing 414 by 8, we find out that a 415 pound drum holds about 51 gallons.
The answer depends on the pressure and temperature of the gas.
Pounds can't be converted to gallons. Pounds measure mass, while gallons measure volume.
10 gallons if WHAT? Air? Water? Diesel fuel? Soy Sauce? They all have different densities and weights.