Molar and molecular weight of O7Tb4

• Molecular formula: O7Tb4 or Tb4O7
• Relative molecular weight of O7Tb4: 747.6972
• Molar mass of O7Tb4: 747.6972 g/mol (0.7477 kg/mol)

Calculation of the relative molecular and molar mass of O7Tb4

• Mr[O7Tb4] = Ar[O] * 7 + Ar[Tb] * 4 = 15.9994 * 7 + 158.92535 * 4 = 747.6972
• Molar mass (kg/mol) = Mr[O7Tb4] : 1000 = 747.6972 : 1000 = 0.7477 kg/mol

O7Tb4: percent composition by element

• Oxygen (O) = 111.9958 : 747.6972 * 100 = 14.979 %
• Terbium (Tb) = 635.7014 : 747.6972 * 100 = 85.021 %

Molar mass calculator