17. Solving a chemistry problem

17. Solving a chemistry problem

8. Construct potentiometric titration curves in pH–V coordinates and determine the mass (in grams) of HCl in 100 ml of solution, if the following results were obtained during titration of 20.0 ml of the analyzed acid solution with 0.18 N NaOH solution:
V NaOH, ml 10.0 15.0 18.0 19.0 19.5 19.9 20.0 20.1 21.0 21.5
pH 1.45 1.85 2.25 2.60 3.10 3.60 7.00 10.6 11.5 11.6

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