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3.1.12.6 Buffer Action
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Total cards: 5•Content version: v4•Public deck•Updated: 8/1/2026
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#1
Front (Question)
What are buffer solutions?
Back (Answer)
Solutions which resist changes in pH when small amounts of acid / base are added In the solution there must be lareg amounts of the base and acid for the buffer to work effectively
#2
Front (Question)
What are acidic buffers?
Back (Answer)
Weak acids pH is lower than 7
#3
Front (Question)
What are alkali buffers?
Back (Answer)
Solutions of weak bases and conjugate acids pH is higher than 7
#4
Front (Question)
What does the pH at which a buffer operates depend on?
Back (Answer)
The pka of the acidic component present
#5
Front (Question)
How do you work out the pKa value?
Back (Answer)
pKa = -log 10 (Ka) Ka = 10 to the power of (-pKa)