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  4. The elevation in boiling point, when 13.44 g of freshly prepared CuCl 2 are added to one kilogram of water, is [Some useful data, K b=0.52 K kg mol -1, molecular weight of CuCl 2=134.4 g ]

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Q. The elevation in boiling point, when $13.44\, g$ of freshly prepared $CuCl _{2}$ are added to one kilogram of water, is
[Some useful data, $K _{b}=0.52 \,K\,kg\,mol ^{-1}$, molecular weight of $CuCl _{2}=134.4 \,g$ ]

AIEEEAIEEE 2005Solutions

Solution:

Molality $=\frac{13.44}{134.1}=0.1$
$i=3$
$\Rightarrow \Delta T_b =iK_b .m =3 \times 0.52 \times 0.1 =0.156$