Chemistry - Liquid Solution Question with Solution | TestHub

ChemistryLiquid SolutionAbnormal Colligatiove PropertiesEasy2 minPYQ_2020

ChemistryEasysingle choice

A solution of sucrose (Molar mass = 342) has been prepared by dissolving 68.4g of sucrose in one kg of water. $K_{f}$ for water is $1 .86 K kg {mol}^{- 1}$ .

The freezing point of the solution will be

Options:

Answer:

Solution:

${ΔT}_{f} = K_{f} . m$

${ΔT}_{f} = i \times k_{f} \times m$

$T_{f}^{0} - T_{f}^{S} = i \times k_{f} \times m$
$0 - T_{f}^{s} = 1 (1 .86 kkg mo {l^{-}}^{1}) \frac{\frac{68 .4}{342}}{1} mol / kg$
$= 0 {.372}^{0} k = 0 {.372}^{0} C$

$T_{f}^{S} = - 0 {.372}^{0} C$

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

⏱ 2mℹ️ Source: PYQ_2020

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