61. Solving a chemistry problem

2) An adsorbent weighing 2 g was placed in 50 cm3 of a solution with an acetic acid concentration of 0.1 mol/dm3, and the mixture was shaken until adsorption equilibrium was reached. After that, the solution was filtered. 15 cm3 of a titrant solution with a KOH concentration of 0.05 mol/dm3 was used to titrate 10 cm3 of the filtrate. Determine the amount of adsorption of acetic acid.