Question

150 g of acetic acid was contaminated with 10.2 g ascorbic acid (C₆H₈O₆) to lower down its freezing point by (x × 10^-1)°C. The value of x is _____

(Nearest integer) 

[Given K_f = 3.9 K kg mol^-1 ; 

Molar mass of ascorbic acid = 176 g mol^-1]

Answer 1

= 1.5°C

= 15 x 10^-1°C