Ncert Exercises & Solutions

Question 12.34:
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.

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

$= \frac{35.5 \times 0.5740}{143.32}$
$= 0.1421 g$
$∴$ 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%.

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