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[6] 11 a). Calculate the pH of a buffer solution prepared by adding 25.0 mL of
0.250 M KOH(aq) to 30.0 mL of 0.350 M aqueous acetic acid.
b)
Calculate the pH of the above buffer solution after the addition of
10.0 mL of 0.105 M HCl(aq) solution.
