ORGLIST: Simple questions

Date view Thread view Subject view Author view Attachment view

From: Sam (crafx$##$terra.net.lb)
Date: Sat Mar 11 2000 - 06:24:06 EST

Hi...This is Sam from Lebanon.
This is my first time here, so...Excuse me for my verry bad english :-)
I have some simple questions, I hope someone will help me finding the answers :

* Why after cooling (after heating) a solution that contains an organic (or non organic) compound with a specific solvant, this compound is recrystallised ?

*How does it happen that the melting point of a compound is a why to find its purity ?

*Why does polar solvents dissolve polar molecules, while nonpolar solvents dissolve non polar molecules.

I am new to the internet, if anyone can help find informations about these stuff ?
I am looking for a mailing list similar to this one, but about mineral chemitry...
Where can i find values of Kps or Ka for different compounds.

Thank you all verry much

__________________

ORGLIST - Organic Chemistry Mailing List
Website and Archive: http://www.orglist.net/
List coordinator: Joao Aires de Sousa (jas$##$mail.fct.unl.pt)

Date view Thread view Subject view Author view Attachment view

This archive was generated by hypermail 2.1.4 : Fri Sep 19 2003 - 12:15:34 EDT