Question

experimental determination of molecular mass by dynamic method ​

Answer 1

Explanation:

In this method molecular mass of an unknown solute is calculated by measuring depression of freezing point of pure solvent after addition of solute is to

depending on the method pf depression of freezing point(ΔT) is proportional to the concentration of the solution(m).

so the equation is

ΔTαm

And then

ΔT=kfm

  m= mass of solute (W) / molecular weight of solute (M) × weight of solvent (kg)

Here depression of freezing point(ΔT)is experimentally determined mass of solute and also mass of the solvent is known.Therefore by using the above equation molecular weight of solute can easily determined.

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Answer 2

sorry I didn't know.....