Question

In an estimation of sulphur by Carius method, $0.234$ g of an organic sulphur compound afforded $0.334$ g of $BaS{O}_4$. Find the percentage of Sulphur in the compound.

• A. $12.28$%
• B. $19.60$%
• C. $15.96$%
• D. $23.67$%

Answer 1

The correct option is B $19.60$%

$\%$ of Sulphur $=\frac{32}{233}\times \frac{MassofBaS{O}_{4}formed}{Massoforganiccompound}\times 100$

$⟹\%$ of Sulphur $=\frac{32}{233}\times \frac{0.334}{0.234}\times 100$

$⟹\%$ of Sulphur $=19.60\%$ (approx.)