What does a gallon of aqua ammonia weigh?

Answer 1

Anhydrous ammonia is NH3 is GAS (at STP)!

Density:

NH3 (gas, at certain pressure and temperature)

0.73 kg/m3 (1.013 bar at 15 °C)

0.86 kg/m3 (1.013 bar at boiling point: −33.3 °C)

NH3 (liquifyed gas)

681.9 kg/m3 at −33.3 °C

Answer 2

Because the weight of ammonia and water is different, the weight of the solution will depend on the concentration (ratio) of the solution.

Pure ammonia weighs 5.15 pounds per gallon. Pure water weighs 8.34 pounds per gallon. To figure out the weight of the solution you only need to know the percentage of each.

For a solution of 20% ammonia:

5.15 lbs * 0.20 = 1.03 lbs ammonia / gal solution.

8.34 lbs * 0.80 = 6.672 lbs water / gal solution.

1.03 lbs + 6.672 lbs = 7.702 lbs / gal of 20% solution.

Answer 3

A gallon of aqua ammonia, which is a solution of ammonia in water, typically weighs about 9.7 to 10.2 pounds, depending on its concentration.