In an experiment to determine the concentration of a barium hydroxide solution, a student placed a nitric acid solution in an Erlenmeyer flask along with some distilled water and a few drops of phenolphthalein indicator. The acid solution was then titrated with barium hydroxide solution from a buret until a faint pink color was reached. The following data was recorded: Molarity of nitric acid solution = 0.219 M Volume of nitric acid solution used = 13.4 mL Initial buret reading = 18.3 mL Final buret reading = 31.3 mL b) Use the lab data above to calculate the molarity of the barium hydroxide solution to the correct number of significant figures.