Molar and molecular weight of HgSeO3

• Relative molecular weight of HgSeO3: 327.5482
• Molar mass of HgSeO3: 327.5482 g/mol (0.32755 kg/mol)

Calculation of the relative molecular and molar mass of HgSeO3

• Mr[HgSeO3] = Ar[Hg] + Ar[Se] + Ar[O] * 3 = 200.59 + 78.96 + 15.9994 * 3 = 327.5482
• Molar mass (kg/mol) = Mr[HgSeO3] : 1000 = 327.5482 : 1000 = 0.32755 kg/mol

HgSeO3: percent composition by element

• Mercury (Hg) = 200.59 : 327.5482 * 100 = 61.24 %
• Selenium (Se) = 78.96 : 327.5482 * 100 = 24.106 %
• Oxygen (O) = 47.9982 : 327.5482 * 100 = 14.654 %

Molar mass calculator