Question

An aqueous solution of glucose containing 12 g in 100 g of water was found to boil at 100.34°C. Calculate K_h for water in K mol^-1 kg.

Answer 1

Given, b.pt. of water =100°C

b.pt. of solution = 100.34°C 

Elevation in b.pt.;   Δf= 0.34°C, w = 12 g, W= 100 g, m = 180