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Topic: Why does this produce a buffer solution?  (Read 3269 times)

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Offline DMOC

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Why does this produce a buffer solution?
« on: March 13, 2010, 07:05:50 PM »
I'm confused on these buffer solutions.

Let's say that I have a solution prepared to be initially 0.5 M in CH3COOH and 1 M in CH3COONa.

Apparently, this is supposed to produce a buffer solution with a pH between 4 and 7. But I'm not getting where (a) the acidic part comes from and (b) why this produces a buffer solution. Thanks to anyone who can help. :)
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Offline Borek

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Re: Why does this produce a buffer solution?
« Reply #1 on: March 13, 2010, 07:32:40 PM »
No idea what are asking about.

What is buffer definition?
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Offline DMOC

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Re: Why does this produce a buffer solution?
« Reply #2 on: March 13, 2010, 07:36:53 PM »
A buffer's formed by a weak acid and its conjugate base or a weak base and its conjugate acid.

I'm not sure why this is a buffer solution though. I see an acid but also a salt.
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Offline Borek

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Re: Why does this produce a buffer solution?
« Reply #3 on: March 14, 2010, 05:41:48 AM »
What is a conjugate base then.
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