Molar and molecular weight of O5F2

• Molecular formula: O5F2 or F2O5
• Relative molecular weight of O5F2: 117.9938064
• Molar mass of O5F2: 117.9938064 g/mol (0.11799 kg/mol)

Calculation of the relative molecular and molar mass of O5F2

• Mr[O5F2] = Ar[F] * 2 + Ar[O] * 5 = 18.9984032 * 2 + 15.9994 * 5 = 117.9938064
• Molar mass (kg/mol) = Mr[O5F2] : 1000 = 117.9938064 : 1000 = 0.11799 kg/mol

O5F2: percent composition by element

• Fluorine (F) = 37.9968064 : 117.9938064 * 100 = 32.202 %
• Oxygen (O) = 79.997 : 117.9938064 * 100 = 67.798 %

Molar mass calculator