Titration with solutions of potassium bromate, KBrO3, can be used to determine the concentration of As(III). Part A What is the molar concentration of As(III) in a solution if 22.95 mL of 0.100 M KBrO3 is needed to titrate 52.50 mL of the As(III) solution? The balanced equation is 3H3AsO3(aq)+BrO−3(aq)→Br−(aq)+3H3As O4(aq)