Molar and molecular weight of Pb3(PO4)2

• Molecular formula: Pb3(PO4)2 or O8P2Pb3
• Relative molecular weight of Pb3(PO4)2: 811.542724
• Molar mass of Pb3(PO4)2: 811.542724 g/mol (0.81154 kg/mol)

Calculation of the relative molecular and molar mass of Pb3(PO4)2

• Mr[Pb3(PO4)2] = Ar[O] * 8 + Ar[P] * 2 + Ar[Pb] * 3 = 15.9994 * 8 + 30.973762 * 2 + 207.2 * 3 = 811.542724
• Molar mass (kg/mol) = Mr[Pb3(PO4)2] : 1000 = 811.542724 : 1000 = 0.81154 kg/mol

Pb3(PO4)2: percent composition by element

• Oxygen (O) = 127.9952 : 811.542724 * 100 = 15.772 %
• Phosphorus (P) = 61.947524 : 811.542724 * 100 = 7.633 %
• Lead (Pb) = 621.6 : 811.542724 * 100 = 76.595 %

Molar mass calculator