Question: to determine the molar mass of an unknown organic compound...
To determine the molar mass of an unknown organic compound (a non-electrolyte), 1.011 g was dissolved in 19.989 g para-dichlorobenzene (also known as 1,4-dichlorobenzene), C6H4Cl2. The freezing point of the resulting solution was found to be 50.2 oC. What is the molar mass of the unknown?
Kf C6H4Cl2 =
Freezing Point C6H4Cl2 = 53.0 oC