A student titrated a 10.00 mL sample of vinegar with 0.187 M NaOH. The student analyzed their titration curve and summarized their data in the following table. Region Initial Half Equivalence point Equivalence point Post-Equivalence point Measured pH 2.74 4.69 8.18 12.11 Total volume of titrant (ml) 0.00 19.40 38.80 50.00 Total volume of solution in beaker (ml) 10.00 29.40 48.80 60,00 Calculate the concentration of acetic acid. Report your answer in units of molarity, to 3 significant figures.