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Chemistry
Factoring and Multiples
Soil

What factors determine pH of buffering?

Answer

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June 14, 2010 12:01PM

If a strong acid is mixed with a weak base, pH=pKa+/-1 in the buffer region.

Corrected:

If a strong base is mixed with a weak acid pOH= pKb +/-1 ( pH=(14 - pKb)+/-1) in the buffer region

[Remember: For one conjugated pair of weak acid (a = HB) AND its weak base (b = B-):

pKa + pKb = 14.0

and

pH + pOH = 14.0