Molar and molecular weight of H2S2O3

• Molecular formula: H2S2O3 or H2O3S2
• Relative molecular weight of H2S2O3: 114.14408
• Molar mass of H2S2O3: 114.14408 g/mol (0.11414 kg/mol)

Calculation of the relative molecular and molar mass of H2S2O3

• Mr[H2S2O3] = Ar[H] * 2 + Ar[O] * 3 + Ar[S] * 2 = 1.00794 * 2 + 15.9994 * 3 + 32.065 * 2 = 114.14408
• Molar mass (kg/mol) = Mr[H2S2O3] : 1000 = 114.14408 : 1000 = 0.11414 kg/mol

H2S2O3: percent composition by element

• Hydrogen (H) = 2.01588 : 114.14408 * 100 = 1.766 %
• Oxygen (O) = 47.9982 : 114.14408 * 100 = 42.051 %
• Sulfur (S) = 64.13 : 114.14408 * 100 = 56.183 %

Molar mass calculator