An element X(Atomic mass = 25) exists as X_4 is benzene. 51g of saturated solution of X in benzene was added t

# Ask a Question

### Question Asked by a Student from EXXAMM.com Team

Q 1270080816.     An element X(Atomic mass = 25) exists as X_4 is benzene. 51g of saturated solution of X in benzene was added to 50.0 g of pure benzene. The resulting solution showed a depression of freezing point of 0.55 K. Find the solubility of X per 100 g of benzene, (K_f for benzene = 5.5 K kg mol^(–1))
A

2.0 g

B

2.5 g

C

4.1 g

D

3.2 g

#### HINT

Use formula: ΔT_f =( 1000 K_fw_A)/(M_Bw_B)

(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

#### Access free resources including

• 100% free video lectures with detailed notes and examples
• Previous Year Papers
• Mock Tests
• Practices question categorized in topics and 4 levels with detailed solutions
• Syllabus & Pattern Analysis