# Boiling Point

1. Feb 4, 2007

### sweetshelly

1. The problem statement, all variables and given/known data
Calculate the boiling point (in degrees C) of a solution made by dissolving 7.49 g of urea {CO(NH2)2} in 28.0 g of water. The Kbp of the solvent is 0.512 K/m and the normal boiling point is 373 K

2. Relevant equations
Delta Tf = (i)(m)(Kbp)

3. The attempt at a solution

Kbp= 0.512 k/m

molality (m)= ?
first I have to find molality
(7.49g/60g)/(.028 kg water) = 4.458m

I don't know what the i value is. What do I do with the normal boiling point?

The answer is 102.283 celicus this would be 375.28K.
Then I did some research on the internet I came across this site that didn't use the i value is this possible.
375.28= 373 + delta Tf

Last edited: Feb 4, 2007
2. Jun 17, 2007

### axewater

I came to this forum to try and help out, but I see only so much stuff I don't know anything about anymore ... Obviously my education outdated LOL
I've reached my bioling point ... I'm going out for a smoke !