Molar and molecular weight of MnCl2

• Molecular formula: MnCl2 or Cl2Mn
• Relative molecular weight of MnCl2: 125.844045
• Molar mass of MnCl2: 125.844045 g/mol (0.12584 kg/mol)

Calculation of the relative molecular and molar mass of MnCl2

• Mr[MnCl2] = Ar[Cl] * 2 + Ar[Mn] = 35.453 * 2 + 54.938045 = 125.844045
• Molar mass (kg/mol) = Mr[MnCl2] : 1000 = 125.844045 : 1000 = 0.12584 kg/mol

MnCl2: percent composition by element

• Chlorine (Cl) = 70.906 : 125.844045 * 100 = 56.344 %
• Manganese (Mn) = 54.938045 : 125.844045 * 100 = 43.656 %

Molar mass calculator