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a.  A 25.0 mL of a solution of acetic acid (HA) of unknown concentration is titrated with...

a.  A 25.0 mL of a solution of acetic acid (HA) of unknown concentration is titrated with 0.0919 M NaOH and the equivalence point volume was determined by graphical means to be 25.91 mL. What is the concentration of the acetic acid?

concentration of HA = ___ M

b.  Calculate the pKa of a weak monoprotic acid if the pH of a 0.162 M solution is 2.52.

pKa = ___

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