SolutionMedium
Question
When 20 g of naphthoic acid (C11H8O2) is dissolved in 50 g of benzene (Kf = 1.72 K kg mol-1), a freezing point depression of 2 K is observed. The van′t Hoff factor (i) is
Options
A.0.5
B.1
C.2
D.3
Solution
ᐃTf = Kf × molality × i
2 = 1.72
i = 0.5
Hence (A) is correct.
2 = 1.72
i = 0.5
Hence (A) is correct.
Create a free account to view solution
View Solution FreeMore Solution Questions
The vapour pressure of water at 20oC is 17.5 mm Hg. If 18 g of glucose (C6H12O6) is added to 178.2 g of water at 20oC, t...What is molarity of HCl in a solution prepared by dissolving 5.5g HCl in 200 g ethanol. If the density of the solution i...Which one of the following graphs accurately represents the plot of partial pressure of ${CS}_{2}$ vs its mole fraction ...For an ideal binary solution with PA0 / PB0 which relation between XA (mole fraction of A in liquid phase) and YA (mole ...Kf for water is 1.86 K kg mol-1. If your automobile radiator holds 1.0 kg of water, how many grams of ethylene glycol (C...