Hexachlorophene Is Used as a Disinfectant in Germicidal Soaps

Multiple Choice

Hexachlorophene is used as a disinfectant in germicidal soaps. What mass of hexachlorophene ( = 406.9 g/mol) must be added to 125 g of chloroform to give a solution with a boiling point of 62.60°C? K_b = 3.63°C/m, boiling point of pure chloroform = 61.70°C

A) 12.6 g
B) 17.2 g
C) 31.0 g
D) 34.4 g
E) 101 g