1. Tardigrade
  2. Question
  3. Chemistry
  4. Calculate the boiling point of a solution containing 0.61 g of benzoic acid in 50 g of carbon disulphide assuming 84 % dimerization of the acid. The boiling point and K b of CS 2 are 46.2° C and 2.3 K kg mol -1, respectively.

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Q. Calculate the boiling point of a solution containing $0.61 \,g$ of benzoic acid in $50\, g$ of carbon disulphide assuming $84 \%$ dimerization of the acid. The boiling point and $K _{ b }$ of $CS _{2}$ are $46.2^{\circ} C$ and $2.3\, K\, kg\, mol ^{-1}$, respectively.

Solutions

Solution:

$\Delta T _{ b } = K _{ b}m \times i $
$=.58 \times 2.3 \times \frac{.61 / 122}{50 / 1000}$
$=0.1334$
$b.p. =46.2+.1334$
$=46.334^{\circ} C$