Titration of a weak base with a strong acid

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Alex Nguyen 3I
Posts: 100
Joined: Fri Sep 25, 2015 3:00 am

Titration of a weak base with a strong acid

Postby Alex Nguyen 3I » Fri Dec 04, 2015 11:45 pm

After the stoichiometric point, when you are overshooting the weak base sample with acid, what reaction is taking place? Is the salt/acidic anion still being made, or is the strong acid just protonating water at this point?

joannali1027
Posts: 21
Joined: Fri Sep 25, 2015 3:00 am

Re: Titration of a weak base with a strong acid

Postby joannali1027 » Sat Dec 05, 2015 3:04 am

Once you've reached the stoichiometric point, the reaction becomes that the strong acid is protonating the water since the weak base has been all changed to acid. This is because at the stoichiometric point, the concentrations of the weak base and the strong acid are equal, and thus you can think of it as the weak base is all used up. Now you are concerned with the acid and the reaction as the acid protonates the water.


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