Find the depression in freezing point of solution when 3.2 gram non volatile solute with molar mass 128 gram mol ⁻¹ is dissolved in 80 gram solvent if cryoscopic constant of solvent is 4.8 ~K ~kg ~mol ⁻¹ .

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Correct answer: B. 1.5 ~K

aligned T _ f & = 1000 ~K _ f W ₂ M ₂ ~W ₁ & = 1000 ~g ~kg ⁻¹ 4.8 ~K ~kg ~mol ⁻¹ 3.2 ~g 128 ~g ~mol ⁻¹ 80 ~g & =1.5 ~K aligned

Find the depression in freezing point of solution when 3.2 gram non volatile solute with molar mass 128 gram mol ⁻¹ is dissolved in 80 gram solvent if cryoscopic constant of solvent is 4.8 ~K ~kg ~mol ⁻¹ .

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