Molar and molecular weight of K2S2O6(O2)

• Relative molecular weight of K2S2O6(O2): 270.3218
• Molar mass of K2S2O6(O2): 270.3218 g/mol (0.27032 kg/mol)

Calculation of the relative molecular and molar mass of K2S2O6(O2)

• Mr[K2S2O6(O2)] = Ar[K] * 2 + Ar[S] * 2 + Ar[O] * 8 = 39.0983 * 2 + 32.065 * 2 + 15.9994 * 8 = 270.3218
• Molar mass (kg/mol) = Mr[K2S2O6(O2)] : 1000 = 270.3218 : 1000 = 0.27032 kg/mol

K2S2O6(O2): percent composition by element

• Potassium (K) = 78.1966 : 270.3218 * 100 = 28.927 %
• Sulfur (S) = 64.13 : 270.3218 * 100 = 23.724 %
• Oxygen (O) = 127.9952 : 270.3218 * 100 = 47.349 %

Molar mass calculator