Question

0.3780 g of an organic chloro compound gave 0.5740 g of silver chloride in Carius estimation. Calculate the percentage of chlorine present in the compound.

Answer 1

Given that,
Mass of organic compound is 0.3780 g.
Mass of AgCl formed = 0.5740 g
1 mol of AgCl contains 1 mol of Cl.
Thus, mass of chlorine in 0.5740 g of AgCl
$=\frac{35.5\times 0.5740}{143.32}$
= 0.1421 g
$\therefore$ Percentage of chlorine $=\frac{0.1421}{0.3780}\times 100=37.59\%$
Hence, the percentage of chlorine present in the given organic chloro compound is 37.59%.