On heating 0.32g of an organic compound with concentrated nitric acid and barium chloride, 0.932g barium sulphate was obtained. Calculate the percentage of sulphur in the given compound.

On heating 0.32g of an organic compound with concentrated nitric acid

1.	On heating 0.32g of an organic compound with concentrated nitric acid and barium chloride, 0.932g barium sulphate was obtained. Calculate the percentage of sulphur in the given compound.
Answer» Solution :Mass of organic compound, `W = 0.32g` Mass of barium sulphate, `W_(1) = 0.932g` `underset(233g)(BaSO_(4))-= underset(32g)(S)` Percentage of sulphur `= (32)/(233) XX (W_(1))/(W) xx 100` `= (32)/(233) xx (0.932)/(0.32) xx 100 = 40%`