What is the pH of the resulting buffer?

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What is the pH of the resulting buffer?

Postby Oura » Wed 04 May, 2011 12:36

0.10 mol of solid sodium hydrogen carbonate and 0.20 mol of solid sodium carbonate are
dissolved in the same beaker of water, transferred to a volumetric flask and made to
250.0 mL. The Ka for `HCO_3^-` is `4.7 x 10^-11`
Oura
 
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