4. Plot a potentiometric titration curve in pH – V coordinates and determine the concentration (mol/l) of a CH3COOH solution if, during titration of 10.00 ml of this acid with a 0.1000 M KOH solution, according to the following data:
V(KOH), ml 10.00 13.00 14.00 14.50 14.90 15.00 15.10 15.50 16.00
pH 5.05 5.56 5.88 6.19 6.92 8.82 10.59 11.29 11.58

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