What is the Molal Concentration of Pure Ether?

[Torshi]

Homework Statement

What is the approximate molal concentration of the solute pure ether? Kb is 2.02, normal boiling point is 37 degrees Celsius.

Homework Equations

ΔTb= Kb * m

ΔTb is the change in boiling point temp.
Kb for ether is 2.02
m is the molal concentration which I am trying to find.
37 celsius is the normal boiling point

The Attempt at a Solution

ΔTb/Kb = m

i tried 37 degrees divided by (Kb value 2.02), and i also tried 137/2.02 -> i added 100 degrees because the boiling point elevation thing. Both answers were wrong

 

[Borek]

You need to know boiling point of your mixture, without it you will be not able to calculate bp elevation.