Molar and molecular weight of MnI2

• Relative molecular weight of MnI2: 308.746985
• Molar mass of MnI2: 308.746985 g/mol (0.30875 kg/mol)

Calculation of the relative molecular and molar mass of MnI2

• Mr[MnI2] = Ar[Mn] + Ar[I] * 2 = 54.938045 + 126.90447 * 2 = 308.746985
• Molar mass (kg/mol) = Mr[MnI2] : 1000 = 308.746985 : 1000 = 0.30875 kg/mol

MnI2: percent composition by element

• Manganese (Mn) = 54.938045 : 308.746985 * 100 = 17.794 %
• Iodine (I) = 253.80894 : 308.746985 * 100 = 82.206 %

Molar mass calculator