Molar and molecular weight of ZnSO4

• Molecular formula: ZnSO4 or O4SZn
• Relative molecular weight of ZnSO4: 161.4716
• Molar mass of ZnSO4: 161.4716 g/mol (0.16147 kg/mol)

Calculation of the relative molecular and molar mass of ZnSO4

• Mr[ZnSO4] = Ar[O] * 4 + Ar[S] + Ar[Zn] = 15.9994 * 4 + 32.065 + 65.409 = 161.4716
• Molar mass (kg/mol) = Mr[ZnSO4] : 1000 = 161.4716 : 1000 = 0.16147 kg/mol

ZnSO4: percent composition by element

• Oxygen (O) = 63.9976 : 161.4716 * 100 = 39.634 %
• Sulfur (S) = 32.065 : 161.4716 * 100 = 19.858 %
• Zinc (Zn) = 65.409 : 161.4716 * 100 = 40.508 %

Molar mass calculator