Question

Write the chemical formula for the covalent compound silicon dioxide and mention their molecular weight in brackets after the formula.

Answer 1

Silicon dioxide :

• Silicon dioxide is a covalent compound which is basically an oxide of silicon having molecular formula ${\mathbf{SiO}}_{\mathbf{2}}$.
• It is also known as silica and most often recognized in the form of quartz.
• It is composed of silicon and oxygen having molecular weight equal to 60.08 g/mol [28.08+(2*16)].

Thus, the chemical formula and molecular weight of silicon dioxide is ${\mathbf{SiO}}_{\mathbf{2}}$ (60.08 g/mol).