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Torshi
Jan21-12, 09:59 PM
1. The problem statement, all variables and given/known data

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

2. Relevant equations

ΔTb= Kb * m

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

3. 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
Jan31-12, 03:16 AM
You need to know boiling point of your mixture, without it you will be not able to calculate bp elevation.