Molar and molecular weight of V2O5

• Molecular formula: V2O5 or O5V2
• Relative molecular weight of V2O5: 181.88
• Molar mass of V2O5: 181.88 g/mol (0.18188 kg/mol)

Calculation of the relative molecular and molar mass of V2O5

• Mr[V2O5] = Ar[O] * 5 + Ar[V] * 2 = 15.9994 * 5 + 50.9415 * 2 = 181.88
• Molar mass (kg/mol) = Mr[V2O5] : 1000 = 181.88 : 1000 = 0.18188 kg/mol

V2O5: percent composition by element

• Oxygen (O) = 79.997 : 181.88 * 100 = 43.983 %
• Vanadium (V) = 101.883 : 181.88 * 100 = 56.017 %

Molar mass calculator