43. Solving a chemistry problem

1. A 2.000 g sample of an unknown substance was dissolved in a volumetric flask with a capacity of 100.0 ml. For titration of 25.00 ml of the solution, 20.00 ml of 0.4455 M HCl were used. Determine what was in the composition of the analyte: KOH or NaOH. Answer: KO.