[wtfmate08]

Hi Everyone-

So I am having trouble in my Chem Lab. I don't understand what is going on when substances dissolve in water. Can someone explain this to me on a molecular level? I have macroscopic all figured out... I'm just confused with how you can tell how many ions are going to come off, if a certain substance will dissolve, etc.

Thanks!

[nj_bartel]

This has to do with polarity and hydrogen bonding.  Have you learned about these forces?

[wtfmate08]

Yea but I'm kinda confused on it. How does it relate to polarity and hydrogen bonding though? Or can you link me to a good website? I've tried google but keep getting more confused with the sites I go to.

[nj_bartel]

 http://www.solubilityofthings.com/basics/why_things_dissolve.php
 http://www.madsci.org/posts/archives/1998-02/887741583.Ch.r.html

[wtfmate08]

thanks!

[Astrokel]

http://www.chemicalforums.com/index.php?topic=28995.msg109958#msg109958 (this is a discussion about polarity in solubility as nj_bartel was talking about)