Question

Sulphur dioxide is a gas composed of one sulphur atom and two oxygen atoms.

a) Is sulphur dioxide a molecule of element or molecule of

compound?

b) What is the atomicity of sulphur dioxide?

c) What is the molecular mass of sulphur dioxide?

Answer 1

a) Molecule of compound

b) Atomicity of $S{O}_2$ = 3

c) Molecular mass of $S{O}_2$ = Mass of S + (2 x Mass of O)

= 32 + (2 x 16)

= 64 u