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Chemistry - Liquid Solution Question with Solution | TestHub

ChemistryLiquid SolutionAbnormal Colligatiove PropertiesEasy2 minPYQ_2023

ChemistryEasysingle choice

Calculate the depression in freezing point of solution when $4 g$ nonvolatile solute of molar mass $126 g mol^{- 1}$ dissolved in $80 mL$ water. $[$ Cryoscopic constant of water $= 1.86 K kg mol^{- 1}]$

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Answer:

Solution:

$80 mL water = 80 g water (Density of water = 1 g / mL) Δ T_{f} = \frac{1000 K _{f} W _{2}}{M _{2} W _{1}} = \frac{1000 g kg ^{- 1} \times 1.86 K kg mol ^{- 1} \times 4 g}{126 g mol ^{- 1} \times 80 g} = 0.74 K$

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

⏱ 2mℹ️ Source: PYQ_2023

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