42. Activated carbon weighing 3 g was added to three solutions of acetic acid of different concentrations with a volume of 100 ml each. The amount of acid before and after adsorption was determined by titrating an aliquot of 50 ml with a KOH solution with a concentration of 0.1 mol / l. Determine the adsorption value for each solution using the following data:
Titrant volume up to 5.50 10.60 23.00
adsorption, ml
Volume of titrant after 1.22 3.65 10.20
establishing
balance, ml
Analyze the results.

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