How Does the Buffering Action of Weak Acids Change During Titration?

AI Thread Summary
The buffering action of weak acids during titration is primarily influenced by the presence of undissociated acid, such as acetic acid, which is more abundant than hydronium ions. When a strong base like NaOH is added, the hydroxide ions (OH-) react with the acetic acid rather than the hydronium ions, forming acetate ions. This reaction maintains the pH within the buffering range near the pKa of the weak acid. The process is similar to H+ reacting with OH-, but the abundance of undissociated acid shifts the reaction dynamics. Understanding these interactions is crucial for grasping the buffering capacity of weak acids during titration.
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I'm a little confused, let's say i do a titration curve for a weak acid, at some point there's a buffering range near the pKa. Like i know that if we add a strong base like NaOH to acetic acid in a water solvent, then the OH- will combine with the H+ (hydronium ion) which will shift the equilibrium towards the acetate ion and hydronium ion. But will a different process occur when we add the OH- in the buffering region? Like in my book, it says that it will react with the acetic acid which will form the acetate ion...but i just don't see why this occurs differently then when the OH- reacted with the hydronium ion...
any help/clearing up would be much appreciated

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It is not much different - in both cases it is like H+ reacting with OH-. However, in the solution of acetic acid there is - like - a lot of undissociated acetic acid, usually much more than H+. Hence we say OH- reacts with acetic acid, not H+.

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Borek said:
It is not much different - in both cases it is like H+ reacting with OH-. However, in the solution of acetic acid there is - like - a lot of undissociated acetic acid, usually much more than H+. Hence we say OH- reacts with acetic acid, not H+.

Like.

Like, are you like annoyed by like the way I'm like writing my message? Like, if you like don't like it, like i suggest like you like find something else to like you know worry about besides like the way i write.

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I don't get how to argue it. i can prove: evolution is the ability to adapt, whether it's progression or regression from some point of view, so if evolution is not constant then animal generations couldn`t stay alive for a big amount of time because when climate is changing this generations die. but they dont. so evolution is constant. but its not an argument, right? how to fing arguments when i only prove it.. analytically, i guess it called that (this is indirectly related to biology, im...

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