Molar and molecular weight of ZnCO3

• Molecular formula: ZnCO3 or CO3Zn
• Relative molecular weight of ZnCO3: 125.4179
• Molar mass of ZnCO3: 125.4179 g/mol (0.12542 kg/mol)

Calculation of the relative molecular and molar mass of ZnCO3

• Mr[ZnCO3] = Ar[C] + Ar[O] * 3 + Ar[Zn] = 12.0107 + 15.9994 * 3 + 65.409 = 125.4179
• Molar mass (kg/mol) = Mr[ZnCO3] : 1000 = 125.4179 : 1000 = 0.12542 kg/mol

ZnCO3: percent composition by element

• Carbon (C) = 12.0107 : 125.4179 * 100 = 9.577 %
• Oxygen (O) = 47.9982 : 125.4179 * 100 = 38.271 %
• Zinc (Zn) = 65.409 : 125.4179 * 100 = 52.153 %

Molar mass calculator