Molar and molecular weight of Zn3(AsO4)2

• Molecular formula: Zn3(AsO4)2 or As2O8Zn3
• Relative molecular weight of Zn3(AsO4)2: 474.0654
• Molar mass of Zn3(AsO4)2: 474.0654 g/mol (0.47407 kg/mol)

Calculation of the relative molecular and molar mass of Zn3(AsO4)2

• Mr[Zn3(AsO4)2] = Ar[As] * 2 + Ar[O] * 8 + Ar[Zn] * 3 = 74.9216 * 2 + 15.9994 * 8 + 65.409 * 3 = 474.0654
• Molar mass (kg/mol) = Mr[Zn3(AsO4)2] : 1000 = 474.0654 : 1000 = 0.47407 kg/mol

Zn3(AsO4)2: percent composition by element

• Arsenic (As) = 149.8432 : 474.0654 * 100 = 31.608 %
• Oxygen (O) = 127.9952 : 474.0654 * 100 = 26.999 %
• Zinc (Zn) = 196.227 : 474.0654 * 100 = 41.392 %

Molar mass calculator