Chemistry - Liquid Solution Question with Solution | TestHub

ChemistryLiquid SolutionColligative PropertiesMedium2 minQB

ChemistryMediumsingle choice

Sodium salts are highly soluble in water and hence undergoes complete ionisation in water. If the freezing point of 0.35 molal aq. $Na_{x} A$ solution is $- 3.25 5^{\circ} C$ , the value of ' x ' is

(K_f = 1.86 K–kg/mole)

Options:

Answer:

Solution:

$Na_{x} A \to xNa^{+} + A^{x -}$

$Δ T_{f} = ik_{f} \cdot m$

$3.255 = (x + 1) \times 1.86 \times 0.35$

$x = 4$

Stream:JEESubject:ChemistryTopic:Liquid SolutionSubtopic:Colligative Properties

⏱ 2mℹ️ Source: QB

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