Question

vant hoff factor 'i' is greater than 'q' for aqueous solution containing potassium chloride. why?​

Answer 1

Answer:

Oct 15 2019

Van't Hoff factor, I, of a 0.5% (w/w) aqueous solution of KCI which [kf of water =1.86 K kg mol-1, Mol. wt. of KCI=74.5].A.

what is the freezing point of a solution containing 8.1g HBr in.

Answer 2

Due to dissociation and in presence of a strong electrolyte the Vant Hoff factor 'i' is greater than 'q' for an aqueous solution containing potassium chloride.

Given:

Vant Hoff factor 'i' is greater than 'q' for an aqueous solution containing potassium chloride.

To find:

We are required to find why the Vant Hoff factor 'i' is greater than 'q' for an aqueous solution containing potassium chloride.

Solution:

'i' is the association or dissociation of solute in solution.

Where i = normal molar mass / observed molar mass ---(1)

• If 'i' is greater than 1 then the observed molar mass is lesser than the normal molar mass.

• The observed molar mass is less in case of dissociation

Therefore, Due to dissociation and in presence of a strong electrolyte the Vant Hoff factor 'i' is greater than 'q' for an aqueous solution containing potassium chloride.

#SPJ2