Posted by Elizabeth on Friday, November 12, 2010 at 10:00pm.
I have been trying to work this out with no success - any help would be great - Thanks
Without deriving the equation, the formula for what you want is
(H^+) = sqrt(k1k2) or
pH = 1/2(pK1 + pK2)
The answer for NaHCO3 is about 8.3 or so.
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