MOLARITY?!? Any help is appreciated!?

Your friend gives you a bottle that contains either hydrochloric, sulfuric or phosphoric acid. She also tells you the concentration of the acid in the bottle is .2312 M. To determine the identity of the acid you titrate 25.00 ml of the acid with 36.95 ml of a .3126 M NaOH solution. Which of the three acids is in the bottle? Please show all steps thanks!!