MHT CET202415 May 2024Morning ShiftChemistrySolutionsActual
A solution of nonvolatile solute is obtained by dissolving 0.8 g in 0.3 dm ^3 water has osmotic pressure 0.2 atm at 300 K . Calculate the molar mass of solute. [ R =0.082 ~atm dm ^3 ~K ⁻¹ ~mol ⁻¹ ]
Options
- A300 ~g ~mol ⁻¹
- B340 ~g ~mol ⁻¹
- C328 ~g ~mol ⁻¹
- D352 ~g ~mol ⁻¹
Correct answer
C. 328 ~g ~mol ⁻¹
Step-by-step solution
aligned M ₂ & = W ₂ RT V & = 0.8 ~g 0.082 dm ^3 ~atm ~K ⁻¹ ~mol ⁻¹ 300 ~K 0.2 ~atm 0.3 dm ^3 & =328 ~g ~mol ⁻¹ aligned