Hey there! Sign in to join this conversationNew here? Join for free
    • Thread Starter
    Offline

    7
    ReputationRep:
    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?
    Offline

    17
    ReputationRep:
    http://bfy.tw/Ezeo

    Try the first one...
    • Thread Starter
    Offline

    7
    ReputationRep:
    (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+?
    Offline

    17
    ReputationRep:
    (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.
    • Community Assistant
    • Study Helper
    Offline

    15
    ReputationRep:
    Community Assistant
    Study Helper
    (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.
 
 
 
Poll
Do you agree with the PM's proposal to cut tuition fees for some courses?

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Write a reply...
Reply
Hide
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.