Molar and molecular weight of Ba(OH)2

• Molecular formula: Ba(OH)2 or H2BaO2
• Relative molecular weight of Ba(OH)2: 171.34168
• Molar mass of Ba(OH)2: 171.34168 g/mol (0.17134 kg/mol)

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

• Mr[Ba(OH)2] = Ar[H] * 2 + Ar[Ba] + Ar[O] * 2 = 1.00794 * 2 + 137.327 + 15.9994 * 2 = 171.34168
• Molar mass (kg/mol) = Mr[Ba(OH)2] : 1000 = 171.34168 : 1000 = 0.17134 kg/mol

Ba(OH)2: percent composition by element

• Hydrogen (H) = 2.01588 : 171.34168 * 100 = 1.177 %
• Barium (Ba) = 137.327 : 171.34168 * 100 = 80.148 %
• Oxygen (O) = 31.9988 : 171.34168 * 100 = 18.675 %

Molar mass calculator