Posted by darren on Tuesday, March 15, 2011 at 11:09pm.
The pH is determined by the hydrolysis of the CO3^-2.
CO3^-2 + HOH ==> HCO3^- + OH^-
Khydrolysis = Kb for carbonate ion = (Kw/K2 for HCO3^-)= (HCO3^-)(OH^-)/(HCO3^-).
Prepare and ICE chart, substitute into the Kb expression above and solve for OH-, pOH, the pH.
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