Use the balanced equation to solve the problem.

NaOH + HC2H3O2 → NaC2H3O2 + H2O

NaOH is used to titrate a solution of HC2H3O2.

39.0mL of 1.00M NaOH were required to completely react with 20.0mL of HC2H3O2.

What is the molarity of the HC2H3O2?