[cormar]

Hey guys
Through an experiment I measured the different boiling temperatures of 6 different salt solutions (NaCl, LiCl, CaCl2, KCl, MgCl2, BaCl2) all of which had the concentration 0.2mol / 100ml. I found that some of these solutions (CaCl2, MgCl2, BaCl2) have a higher boiling point than the others (although there could be deviations due to unexact measurements). I know that salts in general elevate the boiling point of water but I cannot find an explanation why some salts elevate it more than others and what factors influence this.
In the interent I could not find anything helpful so it would be great if someone could explain this to me
Thank you in advance,
Cormar 

[Borek]

The most obvious page, which was the first I visited:

https://en.wikipedia.org/wiki/Boiling-point_elevation

explains what is going on and why.

Your observation - the one about these particular three salts having a higher boiling point than the three other - is quite correct and exactly as expected. Actually the wikipedia article mentions some of the salts you used.