Molar and molecular weight of (NH4)2SO4

• Molecular formula: (NH4)2SO4 or H8N2O4S
• Relative molecular weight of (NH4)2SO4: 132.13952
• Molar mass of (NH4)2SO4: 132.13952 g/mol (0.13214 kg/mol)

Calculation of the relative molecular and molar mass of (NH4)2SO4

• Mr[(NH4)2SO4] = Ar[H] * 8 + Ar[N] * 2 + Ar[O] * 4 + Ar[S] = 1.00794 * 8 + 14.0067 * 2 + 15.9994 * 4 + 32.065 = 132.13952
• Molar mass (kg/mol) = Mr[(NH4)2SO4] : 1000 = 132.13952 : 1000 = 0.13214 kg/mol

(NH4)2SO4: percent composition by element

• Hydrogen (H) = 8.06352 : 132.13952 * 100 = 6.102 %
• Nitrogen (N) = 28.0134 : 132.13952 * 100 = 21.2 %
• Oxygen (O) = 63.9976 : 132.13952 * 100 = 48.432 %
• Sulfur (S) = 32.065 : 132.13952 * 100 = 24.266 %

Molar mass calculator