Le Chatelier's Principle

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srking3221@gmail.com
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Le Chatelier's Principle

Post by srking3221@gmail.com » Thu May 07, 2020 4:42 pm

With the question attached, I just want clarity on why wouldn't increasing the amount of acetic acid influence percent dissociation if the amount protons are increased according to Le Chatelier's Principle?
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NS_Tutor_Mathias
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Re: Le Chatelier's Principle

Post by NS_Tutor_Mathias » Fri May 08, 2020 3:49 am

Increasing the amount of acetic acid will increase the raw amount of protons in solution (read: hydronium ions), but it will not increase the proportion that dissociate. In fact, it will decrease it as I add more and more acetic acid - the reaction environment becomes more acidic, making it harder, not easier, for newly added acetic acid molecules to lose their proton.
srking3221@gmail.com
Posts: 18
Joined: Sun Jan 26, 2020 2:57 pm

Re: Le Chatelier's Principle

Post by srking3221@gmail.com » Fri May 08, 2020 8:34 am

Ok so does this scenario relate to the common ion effect where basically since I already have the acetic acid in solution; adding more of it will introduce a common ion making it less likely to ionize/dissociate?
NS_Tutor_Mathias
Posts: 616
Joined: Sat Mar 30, 2019 8:39 pm

Re: Le Chatelier's Principle

Post by NS_Tutor_Mathias » Fri May 08, 2020 8:16 pm

Pretty much. The more acid I add, the less likely future acids are to dissociate.
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