Calculate the mol

For sulphur:

Molar mass of S = 32g/mol

Sulphur is made up of 8 sulphur atoms.

Hence, molar mass of sulphur (S₈) is:

8 × 32mol/g = 256mol/g

For phosphorus:

Molar mass of P = 31g/mol

Phosphorus molecule is made up of 4 phosphorus atoms.

Hence, molar mass of sulphur (P₄) is:

4 × 31mol/g = 124 mol/g