Homework Help: Chemistry

Posted by George on Sunday, April 3, 2011 at 1:34pm.

The Ka values of H3PO4 are shown below.

Ka1 7.5 multiplied by 10-3
Ka2 6.2 multiplied by 10-8
Ka3 4.8 multiplied by 10-13

What is the pH of a 0.14 M solution of Na2HPO4?

Chemistry - DrBob222, Sunday, April 3, 2011 at 3:35pm
(H^+) = sqrt(k2k3)
pH = -log (H^+)
Chemistry - George, Sunday, April 3, 2011 at 5:12pm
thanks!

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