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Author: Subject: mixing sodium hydroxide and acetic acid
5j5
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[*] posted on 20-6-2006 at 09:32
mixing sodium hydroxide and acetic acid


What is (the salt?) being formed when you mix lye (sodium hydroxide) and vinegar (acetic acid)? I was thinking it might be sodium acetate, but I'm not sure..
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Nerro
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[*] posted on 20-6-2006 at 09:43


It's sodium Acetate. The HO- (hydroyl) ion will snoop the proton from the COOH group on acetic acid (which is the acid in vinegar) to form water and acetate ions. Leaving you with Na+ and H3C-COO- ions. If you evaporate the water you will be left with sodium acetate.

I'm pretty sure EVERY basic chemistry book describes this reaction as the most basic example of strong base - weak acid interaction. And if not google is your friend.




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[*] posted on 20-6-2006 at 09:58


ok. Thanks :) I did try google.. I found one example of sodium bicarbonate + acetic acid -> sodium acetate + water + carbon dioxide, but I didn't find out what is the difference when using sodium hydroxide instead of sodium bicarbonate..

[Edited on 20-6-2006 by 5j5]
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[*] posted on 20-6-2006 at 11:01


Only the CO2 really...

carbonates are usually formed by this reaction;

CO<sub>2</sub> + 2HO<sup>-</sup> <--> CO<sub>3</sub><sup>2-</sup> + H<sub>2</sub>O




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