Question 12.35 In the estimation of sulphur by Carius method, 0.468 g of an organic sulphur compound afforded 0.668 g of barium sulphate. Find out the percentage of sulphur in the given compound.
Class XI Organic Chemistry : Some Basic Principles and Techniques Page 364
Class XI Organic Chemistry : Some Basic Principles and Techniques Page 364
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HiHere is your answer,
The mass of organic compound taken = 0.468 g
Mass of BaSo₄ formed = 0.668 g
Percentage of sulphur = 32/233 × mass of BaSO₄ formed/mass of substance taken × 100
= 32/233 × 0.668/0.468 × 100 = 19.60%
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