Molar and molecular weight of (NH4)2S2O8

• Molecular formula: (NH4)2S2O8 or H8N2O8S2
• Relative molecular weight of (NH4)2S2O8: 228.20212
• Molar mass of (NH4)2S2O8: 228.20212 g/mol (0.2282 kg/mol)

Calculation of the relative molecular and molar mass of (NH4)2S2O8

• Mr[(NH4)2S2O8] = Ar[H] * 8 + Ar[N] * 2 + Ar[O] * 8 + Ar[S] * 2 = 1.00794 * 8 + 14.0067 * 2 + 15.9994 * 8 + 32.065 * 2 = 228.20212
• Molar mass (kg/mol) = Mr[(NH4)2S2O8] : 1000 = 228.20212 : 1000 = 0.2282 kg/mol

(NH4)2S2O8: percent composition by element

• Hydrogen (H) = 8.06352 : 228.20212 * 100 = 3.533 %
• Nitrogen (N) = 28.0134 : 228.20212 * 100 = 12.276 %
• Oxygen (O) = 127.9952 : 228.20212 * 100 = 56.089 %
• Sulfur (S) = 64.13 : 228.20212 * 100 = 28.102 %

Molar mass calculator