Molar and molecular weight of F2O3

• Molecular formula: F2O3 or O3F2
• Relative molecular weight of F2O3: 85.9950064
• Molar mass of F2O3: 85.9950064 g/mol (0.086 kg/mol)

Calculation of the relative molecular and molar mass of F2O3

• Mr[F2O3] = Ar[F] * 2 + Ar[O] * 3 = 18.9984032 * 2 + 15.9994 * 3 = 85.9950064
• Molar mass (kg/mol) = Mr[F2O3] : 1000 = 85.9950064 : 1000 = 0.086 kg/mol

F2O3: percent composition by element

• Fluorine (F) = 37.9968064 : 85.9950064 * 100 = 44.185 %
• Oxygen (O) = 47.9982 : 85.9950064 * 100 = 55.815 %

Molar mass calculator