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Name: Janelle Y.
Status: student
Age: 18
Location: N/A
Country: N/A
Date: 2000


Question:
Hi there Titration Curves - ph and Buffers

Why the pH of a buffer is independent of the buffer concentration, but the buffer capacity does depend on the concentration?


Replies:
Jamelle.

Using an example of a buffer made with a weak acid and its salt: The pH depends on the RATIO of concentrations of the weak acid and salt of the acid. One can make such a solution dilute or concentrated. The capacity of the buffer is determined by the actual amounts of acid and salt. A buffer made with very little acid and salt will not have a very great capacity.

Regards,
ProfHoff



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