0.200 M Base your answer to questions #3 through #5 on the information and data table below. A titration setup was used to determine the unknown molar concentration of a solution of NaOH. A 1.2 M HCl solution was used as the titration standard. The following data were collected. 3. Calculate the volume of NaOH solution used to neutralize 10.0 mL of the standard HCl solution in trial 3. Show your work. 12 mL or Correct Answer: 12.0 mL 4. Calculate the average molarity of the unknown NaOH solution for all four trials. Your answer must include the correct number of significant figures and correct units. 5. According to Reference Table what indicator would be most appropriate in M, determining the end point of this titration? Give one reason for choosing this indicator. Because reach end point close to 7
0.200 M Base your answer to questions #3 through #5 on the information and data table below. A titration setup was used to determine the unknown molar concentration of a solution of NaOH. A 1.2 M HCl solution was used as the titration standard. The following data were collected. 3. Calculate the volume of NaOH solution used to neutralize 10.0 mL of the standard HCl solution in trial 3. Show your work. Correct Answer: 12 mL or 12.0 mL 4. Calculate the average molarity of the unknown NaOH solution for all four trials. Your answer must include the correct number of significant figures and correct units. 5. According to Reference Table M, what indicator would be most appropriate in determining the end point of this titration? Give one reason for choosing this indicator. Because reach end point close to 7