How do you calculate the pH of a buffer?

1 Answer
anor277
Jun 28, 2017

You need details of the acid used, and specific concentrations of acid and base from which it was composed.......

Explanation:

See this [old answer and links......](https://socratic.org/questions/what-do-buffers-do-and-why-are-they-important-in-biological-systems?source=search)

pH=pK_a+log_10{[[A^-]]/[[HA]]}

And thus in equimolar quantities of weak acid and conjugate base, the pH of the buffer is equal to the pK_a of the weak acid. Why?

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