Why does 100 ml MeOH + 100 ml H20 =

Subject: Why does 100 ml MeOH + 100 ml H20 = < 200 ml soln?

Date: Wed Sep 1 19:12:15 1999
Posted by Cleo Salisbury
Grade level: nonaligned School: Genentech
City: So San Francisco State/Province: CA Country: USA
Area of science: Chemistry
ID: 936227535.Ch

Message:


I understand that this must go hand-in-hand with the exothermic reaction 
that it is -- something to do with hydrogen bonding (must be more favorable) 
-- but why? Why is MeOH H-bonding with H20 molecules better than with other 
MeOH molecules?  An increase in entropy doesn't seem realistic given the 
negative volume change...  All very confusing, if you ask me!

Re: Why does 100 ml MeOH + 100 ml H20 = < 200 ml soln?

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