Question

What are the boiling point and freezing point of a 0.40 m solution of sucrose in ethanol?

Answer 1

The solution would be like this for this specific problem:

For freezing point

Tf, soln= -114.6-(i*Kf*m) 
Tf, soln= -114.6 - (1*1.99*0.40) 
Tf= -115.4 C 

 

For boiling point:

Tb=78.4+(i*Kf*m) 

Tb=78.4+(1*1.99*.40) 
Tb= 79.2 C 

So the boiling and freezing point of a 0.40m solution of sucrose in ethanol is 79.2 C and  -115.4 C respectively.