The Grass Doctor

How much of each compound must be used to provide 1.00 kg of nitrogen gas?

Four nitrogen-containing fertilizers are ammonia, ammonium nitrate, ammonium sulfate and urea. How much of each compound must be used to provide 1.00 kg of nitrogen gas?

Public Comments

1. molar mass N2 = 14*2 = 28g/mol 1kg = 1000/28 = 35.714mol If you assume that each compound will convert 100%of its molecular N to N2 gas, then: Ammonia NH3: 35.714*2 = 71.428mol required = 71.428* 17 = 1,214g Ammonium nitrate NH4NO3 : 35.714 = 35.714*80 = 2,857g Ammonium sulphate = (NH4)2 SO4 = 35.714 * 132 = 4,714.g urea = (NH2)2CO = 35.714* 60 = 2,142g