MadSci Network: Chemistry
Query:

Subject: why does a vacumn form when rubbing alcohol and H20 are mixed?

Date: Sat Sep 11 13:19:49 1999
Posted by No name entered.
Grade level: 10-12 School: No school entered.
City: No city entered. State/Province: No state entered. Country: No country entered.
Area of science: Chemistry
ID: 937070389.Ch
Message:

the container it is mixed in is a test tube. The test tube is filled 
halfway with water and then the other half is filled with isopropyl alcohol 
 all the way to the top. The test tube is then closed using your finger. 
After that the test tube is tipped back and forth to mix the contents. 
Afterwards there is a small amount of space at the top of the test tube. 
that is the vacumn. WHy did it form?
 


Re: why does a vacumn form when rubbing alcohol and H20 are mixed?

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