Mass of the organic compound, W=0.2 g
Mass of BaSO4 formed, m=0.6 g
Molar mass of BaSO4=233 g mol−1
Molar mass of S=32 g mol−1
The percentage of sulphur in the organic compound is given by the formula:
%S=23332×Wm×100
Substituting the given values:
%S=23332×0.20.6×100
%S=23332×3×100
%S=2339600≈41.20%
Rounding off to the nearest integer, the percentage of sulphur is 41.
Answer: 41