You have an aliquot of 10 mL of 0.1060 mol/L phosphoric acid.  The ka values for phosphoric acid are 6.9 *10-3, 6.2*10-8 and 4.8 *10-13.  If you mix 6 mL of 0.1002 mol/L NaOH what is the resultant pH? Answer to two decimal places.

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