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O ACIDS AND BASES Calculating the pH of a weak acid titrated with a strong base An analytical Chemist is titrating 50.5 ml of
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Answer #1

mmoles of HCOOH = 50.5 x 0.5300 = 26.8

mmoles of KOH = 0.2900 x 101 = 29.29

[OH-] left = 29.29 - 26.8 / (50.5 + 101 )

                 = 0.0164 M

pOH = -log [OH-]

          = 1.78

pH + pOH = 14

pH = 12.22

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