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Chemistry - Liquid Solution Question with Solution | TestHub

ChemistryLiquid SolutionAbnormal Colligatiove PropertiesMedium2 minPYQ_2009

ChemistryMediumsingle choice

A 0.1 molal solution of an acid is $4.5%$ ionized. Calculate freezing point. (molecular weight of the acid is 300 $) . K_{f} = 1.86 K mol^{- 1} kg$ .

Options:

Answer:

Solution:

If acid is $4.5%$ ionized then $α = 0.045$ . $Δ T_{f} = molality \times K_{f} = 0.1 \times 1.86 = 0.186 Δ T_{e x p} = Δ T_{f} (1 + α) = 0.186 (1 + 0.045) = 0.19 4^{\circ} C$

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

⏱ 2mℹ️ Source: PYQ_2009

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