Molarity of a Solution Name Pre-lab Questions 1. What is the definition and units of molarity? 2. Given this balanced chemical equation and the following titration data, complete the following calculations. Show all work. 3. HC;H,Oz(a) + NaOH(a) > H;Om + NaC;H,Ozta) Titration Data - Trial 1 Volume of acid solution, HC;H,O2 9.97 ml Molarity of acid solution Unknown Initial buret volume (NAOH) measurement 0.02 ml Final buret volume (NaOH) measurement 23.05 ml 0.4888 M. Molarity of NaOH a) Calculate the volume of NaOH solution used in titration by finding the difference between the final and initial buret volume measurements. (Example 5) Answer b) Using three conversion factors (ml to L, molarity of NaOH, and mole ratio of NaOH: HC;H,O;), calculate moles of HC,H3O2 that reacted in this titration. (Example 6) Answer c) Using the yolume of acid solution (convert ml to L), and moles of acid (step b), calculate the molarity of the acid solution. See Example 7. Answer 3. What safety precautions should you be aware of in this experiment? 4. How many moles of acid will be present in 5.25 ml of a 0.159 M acid solution? Show all work. Answer 5. What color is the litmus paper in the acid solution in the fiask before beginning the titration in this experiment? 6. What color is the litmus paper in the neutralized solution in the flask at the end of the titration in this experiment?