SolutionHard
Question
The fraction of phenol dimerised in benzene if 20 g of phenol in 1 kg benzene exhibits a freezing point depression of 0.69 K. (Kf benzene = 5.12 
), (MW phenol = 94)
), (MW phenol = 94)Options
A.0.74
B.0.37
C.0.46
D.0.64
Solution
ᐃTf = i. kb.m
0.69 = i ×
i = 0.63
for dimerization i = 1 - α/2
0.63 = 1 - α/2
α = 0.74.
0.69 = i ×
i = 0.63
for dimerization i = 1 - α/2
0.63 = 1 - α/2
α = 0.74.
Create a free account to view solution
View Solution FreeMore Solution Questions
The boiling point of pure benzene is 353.23 K. When 1.80 g of a non-volatile solute was dissolved in 90 g of benzene, th...The vapour pressure of a saturated solution of sparingly soluble salt (XCl3) was 17.20 mm Hg at 27°C. If the vapour pres...When KCl dissolves in water (assume endothermic dissolution) :...At 100°C, the vapour pressure of a solution of 4.0 g of solute in 100 g of water is 750 mm. The boiling point of the sol...Relative decrease in vapour pressure of an aqueous solution containing 2 moles [Cu(NH3)3Cl] Cl in 3 moles H2O is 0.50. O...