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Acidic and basic buffers

My chemistry textbook has the following information on acidic buffers:

The function of the weak acid component of a buffer is to act as a source of HA which can remove any added OH-.

HA(aq) + OH-(aq) -> A-(aq) + H2O(l)

The function of the salt component of a buffer is to act as a source of A- ions which can remove any added H+ ions:

A-(aq) + H+(aq) -> HA(aq)

The textbook doesn't give general equations like this for bases. What would be the equivalent of this for a basic buffer? Could someone rewrite this for me in terms of Kb, please?
(edited 6 years ago)
Reply 1
Avatar for Pigster
Pigster
20
http://bfy.tw/Ezeo

Try the first one...
Reply 2
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Shedvoy
OP
7
Original post by Pigster
http://bfy.tw/Ezeo

Try the first one...


So if I have an aqueous ammonia and ammonium chloride buffer, Ammonia would be B and ammonium chloride would be HB+?
Reply 3
Avatar for Pigster
Pigster
20
Original post by Shedvoy
So if I have an aqueous ammonia and ammonium chloride buffer, Ammonia would be B and ammonium chloride would be HB+?


Yes.
Original post by Shedvoy
So if I have an aqueous ammonia and ammonium chloride buffer, Ammonia would be B and ammonium chloride would be HB+?


Thisa might help you get a handle on buffers ...

interactive guide to buffers.

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