In the estimation of sulphur by Carius method, 0.468g of an organic sulphur compound afforded 0.668g of barium sulphate. Find out the percentage of sulphur in the given compound. (Ba= 137, S=32, O=16)

In the estimation of sulphur by Carius method, 0.468g of an organic su

1.	In the estimation of sulphur by Carius method, 0.468g of an organic sulphur compound afforded 0.668g of barium sulphate. Find out the percentage of sulphur in the given compound. (Ba= 137, S=32, O=16)
Answer» Solution :molar mass of `BaSO_(4)= 137 + 32 (16 xx 4)= 233g` `UNDERSET(32g)(S) rarr underset(233g)(BaSO_(4))` contain 32g sulphur, `:. 0.668g BaSO_(4)` contain Sulphur `= (32 xx 0.668)/(233) gm` % `S = (32)/(233) xx (0.668)/(0.468) xx 100` = 19.60%