2. Construct potentiometric titration curves in pH-V and ΔpH/ΔV coordinates and determine the concentration of CH3COOH if the following results were obtained when titrating 10.0 ml of the analyzed acid solution with 0.1000 M KOH:
Vcon, ml 10.0 18.0 19.0 19.5 19.9 20.0 20.1 20.5 21.0
pH 4.76 5.71 6.04 6.35 7.06 8.79 10.52 11.22 11.51

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