Molar and molecular weight of Sr(OH)2

• Molecular formula: Sr(OH)2 or H2O2Sr
• Relative molecular weight of Sr(OH)2: 121.63468
• Molar mass of Sr(OH)2: 121.63468 g/mol (0.12163 kg/mol)

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

• Mr[Sr(OH)2] = Ar[H] * 2 + Ar[O] * 2 + Ar[Sr] = 1.00794 * 2 + 15.9994 * 2 + 87.62 = 121.63468
• Molar mass (kg/mol) = Mr[Sr(OH)2] : 1000 = 121.63468 : 1000 = 0.12163 kg/mol

Sr(OH)2: percent composition by element

• Hydrogen (H) = 2.01588 : 121.63468 * 100 = 1.657 %
• Oxygen (O) = 31.9988 : 121.63468 * 100 = 26.307 %
• Strontium (Sr) = 87.62 : 121.63468 * 100 = 72.035 %

Molar mass calculator