Molar and molecular weight of Au(OH)3

• Molecular formula: Au(OH)3 or H3AuO3
• Relative molecular weight of Au(OH)3: 247.988589
• Molar mass of Au(OH)3: 247.988589 g/mol (0.24799 kg/mol)

Calculation of the relative molecular and molar mass of Au(OH)3

• Mr[Au(OH)3] = Ar[H] * 3 + Ar[Au] + Ar[O] * 3 = 1.00794 * 3 + 196.966569 + 15.9994 * 3 = 247.988589
• Molar mass (kg/mol) = Mr[Au(OH)3] : 1000 = 247.988589 : 1000 = 0.24799 kg/mol

Au(OH)3: percent composition by element

• Hydrogen (H) = 3.02382 : 247.988589 * 100 = 1.219 %
• Gold (Au) = 196.966569 : 247.988589 * 100 = 79.426 %
• Oxygen (O) = 47.9982 : 247.988589 * 100 = 19.355 %

Molar mass calculator