Molar and molecular weight of MnO4

• Relative molecular weight of MnO4: 118.935645
• Molar mass of MnO4: 118.935645 g/mol (0.11894 kg/mol)

Calculation of the relative molecular and molar mass of MnO4

• Mr[MnO4] = Ar[Mn] + Ar[O] * 4 = 54.938045 + 15.9994 * 4 = 118.935645
• Molar mass (kg/mol) = Mr[MnO4] : 1000 = 118.935645 : 1000 = 0.11894 kg/mol

MnO4: percent composition by element

• Manganese (Mn) = 54.938045 : 118.935645 * 100 = 46.191 %
• Oxygen (O) = 63.9976 : 118.935645 * 100 = 53.809 %

Molar mass calculator