Chemistry - Liquid Solution Question with Solution | TestHub

ChemistryLiquid SolutionAbnormal Colligatiove PropertiesEasy2 minPYQ_2020

ChemistryEasysingle choice

Calculate the elevation in boiling point, for a solution of $13 .44 g$ of $C u C l_{2}$ in $1 k g$ of water using the following information
(Molecular weight of ${CuCl}_{2} = 134 .4$ and $K_{b} = 0 .52 {Kmolal}^{1}$ )

Options:

Answer:

Solution:

$Δ T_{b} = i . K_{b} . m$
$\begin{array}{l} C u C l_{2} \to & C u^{2 +} + & 2 C l \\ 1 & 0 & 0 \\ (1 - α) & α & 2 α \end{array}$
$i = 1 + 2 α$
Assuming 100% ionization, $α = 1$
So, i = 3
$Δ T_{b} = 3 \times 0.52 \times 0.1 = 0.156 ≅ 0.16$

Stream:NTA_ABHYAS_NEETSubject:ChemistryTopic:Liquid SolutionSubtopic:Abnormal Colligatiove Properties

⏱ 2mℹ️ Source: PYQ_2020

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