Molar mass of :
SO2 = (1 x 32.06 + 2 x 15.999) = 64.058 g/mol
S = 32.06 g/mol
The balanced reaction:
S + O2 ➡️SO2⬆️
Moles of Sulphur in 1 g = (mass of Sulphur in g/molar mass of Sulphur in g/mol) = (1 g/32.06 g/mol) = 0.0312 mol
From the balanced equation, the mole ratio of S to SO2 is 1:1...