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What is the relation between molal elevation constant and molecular elevation constant (In concentration terms) CAN WE WRITE (Molecular elevation constant= 10*Molal elevation constant)??? HERE I AM ASKING ABOUT "ELEVATION'' So pls ans accordingly. If not correct then Pls give the """CORRECT RELATION b/w them"''''
Asked by harjotbhatia0172 | 07 May, 2023, 02:52: AM Expert Answer
Dear Student,

The molal elevation constant, also known as the cryoscopic constant or ebullioscopic constant, is a proportionality constant that relates the change in the freezing point or boiling point of a solvent to the molality of a solute in the solution.

It is denoted by the symbol Kf or Kb, depending on whether the freezing point or boiling point is being measured.

The molecular elevation constant, on the other hand, is a proportionality constant that relates the change in the freezing point or boiling point of a solvent to the molar concentration of a solute in the solution. It is denoted by the symbol kf or kb, again depending on whether the freezing point or boiling point is being measured.The relationship between these two constants depends on the molecular weight of the solute.

For non-electrolytes, which cannot not dissociate in solution, the molecular elevation constant is equal to the molal elevation constant (Kf) multiplied by the molecular weight (M) of the solute divided by the density of the solvent (rho). This can be expressed mathematically as:

kf = Kf ×(M / rho)

Thus, in general, we cannot say that the molecular elevation constant is equal to 10 times the molal elevation constant.

But if, we know molecular weight and density, then we can calculate molecular elevation constant from the above equation.
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