Molar and molecular weight of MnO

• Relative molecular weight of MnO: 70.937445
• Molar mass of MnO: 70.937445 g/mol (0.07094 kg/mol)

Calculation of the relative molecular and molar mass of MnO

• Mr[MnO] = Ar[Mn] + Ar[O] = 54.938045 + 15.9994 = 70.937445
• Molar mass (kg/mol) = Mr[MnO] : 1000 = 70.937445 : 1000 = 0.07094 kg/mol

MnO: percent composition by element

• Manganese (Mn) = 54.938045 : 70.937445 * 100 = 77.446 %
• Oxygen (O) = 15.9994 : 70.937445 * 100 = 22.554 %

Molar mass calculator