Using the following reaction:OH- + HC2H3O2 —> H2O + C2H3O2-a 75.0 mL sample of potassium hydroxide, KOH, of unknown concentration is titrated with42.5 mL of 0.575 M acetic acid. How many moles of KOH were in the sample?Phosphoric acid is a weak electrolyte. In aqueous solution, themajor species is or area. H3PO4(l)b. H3PO4(aq)c. H3O+(aq) + H2PO4-(aq)d. 2 H3O+(aq) + HPO4-(aq)e. 3 H3O+(aq) + PO43-(aq)