Molar and molecular weight of Li2O

• Relative molecular weight of Li2O: 29.8814
• Molar mass of Li2O: 29.8814 g/mol (0.02988 kg/mol)

Calculation of the relative molecular and molar mass of Li2O

• Mr[Li2O] = Ar[Li] * 2 + Ar[O] = 6.941 * 2 + 15.9994 = 29.8814
• Molar mass (kg/mol) = Mr[Li2O] : 1000 = 29.8814 : 1000 = 0.02988 kg/mol

Li2O: percent composition by element

• Lithium (Li) = 13.882 : 29.8814 * 100 = 46.457 %
• Oxygen (O) = 15.9994 : 29.8814 * 100 = 53.543 %

Molar mass calculator