Molar and molecular weight of NH4NO3

• Molecular formula: NH4NO3 or H4N2O3
• Relative molecular weight of NH4NO3: 80.04336
• Molar mass of NH4NO3: 80.04336 g/mol (0.08004 kg/mol)

Calculation of the relative molecular and molar mass of NH4NO3

• Mr[NH4NO3] = Ar[H] * 4 + Ar[N] * 2 + Ar[O] * 3 = 1.00794 * 4 + 14.0067 * 2 + 15.9994 * 3 = 80.04336
• Molar mass (kg/mol) = Mr[NH4NO3] : 1000 = 80.04336 : 1000 = 0.08004 kg/mol

NH4NO3: percent composition by element

• Hydrogen (H) = 4.03176 : 80.04336 * 100 = 5.037 %
• Nitrogen (N) = 28.0134 : 80.04336 * 100 = 34.998 %
• Oxygen (O) = 47.9982 : 80.04336 * 100 = 59.965 %

Molar mass calculator