finding pH in titration

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Offline euroSHSpride

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finding pH in titration
« on: 21/03/2006 23:21:12 »
in a titration of a weak base with a strong acid (ammonia and hydrochloric acid) how do i find the pH at the equivalence point?
and also, how do u find pH after a given amount of acid is added?
i'd appreciate help on any of the 2 questions


Calin
Calin

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Offline wim

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Re: finding pH in titration
« Reply #1 on: 22/03/2006 00:25:16 »
with a pH-elektrode... , in school i get lots of these titrations. You can also use indicators they change color once you reach a certain pH, you have lots of these... i believe this EP is around pH 5 and you also form a buffer-solution(NH3 and NH4+). If you want more information let me know.


grtz
 

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Offline rosy

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Re: finding pH in titration
« Reply #2 on: 22/03/2006 01:01:01 »
I hope I don't sound overly suspicious, but this reads an awful lot like you're trying to get us to do your homework for you.
The answers to your questions are easily google-able, how about you go and do that? If you figure it out for yourself and then post what you come up with, most likely someone will tell you if they think you're right...

If I'm wrong, I apologise... but if you're trying to find this out for some practical purpose perhaps you could give us some indication of what kit you have available (whether you have a pH meter, for example)?