Molar and molecular weight of HgI2

• Relative molecular weight of HgI2: 454.39894
• Molar mass of HgI2: 454.39894 g/mol (0.4544 kg/mol)

Calculation of the relative molecular and molar mass of HgI2

• Mr[HgI2] = Ar[Hg] + Ar[I] * 2 = 200.59 + 126.90447 * 2 = 454.39894
• Molar mass (kg/mol) = Mr[HgI2] : 1000 = 454.39894 : 1000 = 0.4544 kg/mol

HgI2: percent composition by element

• Mercury (Hg) = 200.59 : 454.39894 * 100 = 44.144 %
• Iodine (I) = 253.80894 : 454.39894 * 100 = 55.856 %

Molar mass calculator