Molar and molecular weight of Zn(OH)2

• Molecular formula: Zn(OH)2 or H2O2Zn
• Relative molecular weight of Zn(OH)2: 99.42368
• Molar mass of Zn(OH)2: 99.42368 g/mol (0.09942 kg/mol)

Calculation of the relative molecular and molar mass of Zn(OH)2

• Mr[Zn(OH)2] = Ar[H] * 2 + Ar[O] * 2 + Ar[Zn] = 1.00794 * 2 + 15.9994 * 2 + 65.409 = 99.42368
• Molar mass (kg/mol) = Mr[Zn(OH)2] : 1000 = 99.42368 : 1000 = 0.09942 kg/mol

Zn(OH)2: percent composition by element

• Hydrogen (H) = 2.01588 : 99.42368 * 100 = 2.028 %
• Oxygen (O) = 31.9988 : 99.42368 * 100 = 32.184 %
• Zinc (Zn) = 65.409 : 99.42368 * 100 = 65.788 %

Molar mass calculator