basic chemistry

Discussion of all aspects of biological molecules, biochemical processes and laboratory procedures in the field.

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angel
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basic chemistry

Post by angel » Wed Mar 22, 2006 11:12 am

What is the main difference between glacial acetic acid and acetic acid? why do their strengths differ?

bearhug
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Post by bearhug » Wed Mar 22, 2006 7:40 pm

"Glacial acetic acid is called "glacial" because its freezing point (16.7 C) is only slightly below room temperature. In the (generally unheated) laboratories in which the pure material was first prepared, the acid was often found to have frozen into ice-like crystals. The term "glacial acetic acid" is now taken to refer to pure acetic acid (ethanoic acid) in any physical state." The bond strength is greatest when it is a solid. If the bond strength is stronger than it takes more energy (i.e. heat) to break those bonds.
"In omnias paratus!"

angel
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Post by angel » Mon Mar 27, 2006 9:38 am

But, why it is diffetent from acetic acid

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