Molar and molecular weight of HMnO4

• Relative molecular weight of HMnO4: 119.943585
• Molar mass of HMnO4: 119.943585 g/mol (0.11994 kg/mol)

Calculation of the relative molecular and molar mass of HMnO4

• Mr[HMnO4] = Ar[H] + Ar[Mn] + Ar[O] * 4 = 1.00794 + 54.938045 + 15.9994 * 4 = 119.943585
• Molar mass (kg/mol) = Mr[HMnO4] : 1000 = 119.943585 : 1000 = 0.11994 kg/mol

HMnO4: percent composition by element

• Hydrogen (H) = 1.00794 : 119.943585 * 100 = 0.84 %
• Manganese (Mn) = 54.938045 : 119.943585 * 100 = 45.803 %
• Oxygen (O) = 63.9976 : 119.943585 * 100 = 53.356 %

Molar mass calculator