MHT CET20244 May 2024Morning ShiftChemistrySolutionsActual
Calculate the molar mass of non volatile solute when 1 g of it is dissolved in 100 g solvent decreases its freezing point by 0.2 K . [ K _ f =1.2 ~K ~kg ~mol ⁻¹ . ]
Options
- A55 ~g ~mol ⁻¹
- B60 ~g ~mol ⁻¹
- C65 ~g ~mol ⁻¹
- D70 ~g ~mol ⁻¹
Correct answer
B. 60 ~g ~mol ⁻¹
Step-by-step solution
aligned M ₂ & = K _ f W ₂ 1000 ~T _ f W ₁ = 1.2 1 1000 0.2 100 & =60 ~g ~mol ⁻¹ aligned