Molar and molecular weight of SiO2

• Molecular formula: SiO2 or O2Si
• Relative molecular weight of SiO2: 60.0843
• Molar mass of SiO2: 60.0843 g/mol (0.06008 kg/mol)

Calculation of the relative molecular and molar mass of SiO2

• Mr[SiO2] = Ar[O] * 2 + Ar[Si] = 15.9994 * 2 + 28.0855 = 60.0843
• Molar mass (kg/mol) = Mr[SiO2] : 1000 = 60.0843 : 1000 = 0.06008 kg/mol

SiO2: percent composition by element

• Oxygen (O) = 31.9988 : 60.0843 * 100 = 53.257 %
• Silicon (Si) = 28.0855 : 60.0843 * 100 = 46.743 %

Molar mass calculator