calculate the molal solution depression constant of a solvent which has freezing point 16.6° and latent heat of fusion 180.75J/g

3.3 3.86 2.9 38.6

3.86

To calculate the molal solution depression constant (Kf) of a solvent, you need to know the freezing point depression (∆Tf) and the molality (m) of the solution.

The formula to calculate Kf is given by:

Kf = ∆Tf / m

Given:
Freezing point (∆Tf) = 16.6°C
Latent heat of fusion = 180.75 J/g
Molality (m) = mass of solute (in moles) / mass of solvent (in kg)

Unfortunately, you have not provided any details about the solute and its mass. Without that information, we cannot calculate the molal solution depression constant (Kf).