Molar and molecular weight of Pb(ClO4)2

• Molecular formula: Pb(ClO4)2 or Cl2O8Pb
• Relative molecular weight of Pb(ClO4)2: 406.1012
• Molar mass of Pb(ClO4)2: 406.1012 g/mol (0.4061 kg/mol)

Calculation of the relative molecular and molar mass of Pb(ClO4)2

• Mr[Pb(ClO4)2] = Ar[Cl] * 2 + Ar[O] * 8 + Ar[Pb] = 35.453 * 2 + 15.9994 * 8 + 207.2 = 406.1012
• Molar mass (kg/mol) = Mr[Pb(ClO4)2] : 1000 = 406.1012 : 1000 = 0.4061 kg/mol

Pb(ClO4)2: percent composition by element

• Chlorine (Cl) = 70.906 : 406.1012 * 100 = 17.46 %
• Oxygen (O) = 127.9952 : 406.1012 * 100 = 31.518 %
• Lead (Pb) = 207.2 : 406.1012 * 100 = 51.022 %

Molar mass calculator