AP EAMCET20226 Jul 2022Evening ShiftChemistrySolutionsActual
The freezing point depression of a solution containing 0.6 ~g of urea (molar mass =60 ~g ~mol ⁻¹ ) in 100 ~mL of benzene (in K ) is (K_f . of CH ₃ COOH =4.0 ~K ~kg ~mol ⁻¹ )
Options
- A0.30
- B0.58
- C0.40
- D0.24
Correct answer
C. 0.40
Step-by-step solution
Given, Mass of urea =0.6 ~g Molar mass of urea =60 ~g ~mol ⁻¹K_f of benzene =4.0 ~K ~kg ~mol ⁻¹ and 100 ~mL benzene =0.1 ~L 0 . kg T_f=K_f m So, T_f=4 0.6 60 1 0.1 =0.4