To design a practical experiment demonstrating the real-life applications of acid-base titration in chemical industries, we can focus on the determination of the concentration of an unknown solution, which is a common task in quality control and production processes. In this experiment, we will use the titration method to determine the concentration of acetic acid in a vinegar sample.Materials needed:1. Vinegar sample unknown concentration of acetic acid 2. Sodium hydroxide NaOH solution of known concentration standard solution 3. Phenolphthalein indicator4. Burette5. Erlenmeyer flask6. Analytical balance7. Pipette8. Distilled water9. Magnetic stirrer and stir bar optional Procedure:1. Prepare the standard sodium hydroxide solution by dissolving a known mass of NaOH in distilled water to make a specific volume e.g., 0.1 M NaOH solution .2. Use a pipette to transfer a precise volume e.g., 25.0 mL of the vinegar sample into the Erlenmeyer flask. Record the volume.3. Add 2-3 drops of phenolphthalein indicator to the vinegar sample in the Erlenmeyer flask. The solution should remain colorless.4. Fill the burette with the standard sodium hydroxide solution. Record the initial volume of the burette.5. Slowly add the sodium hydroxide solution from the burette to the vinegar sample in the Erlenmeyer flask while swirling the flask. If available, use a magnetic stirrer and stir bar to ensure thorough mixing.6. Continue adding the sodium hydroxide solution until the phenolphthalein indicator changes color, indicating the endpoint of the titration. The color change should persist for at least 30 seconds. Record the final volume of the burette.7. Calculate the volume of sodium hydroxide solution used in the titration by subtracting the initial volume from the final volume.8. Use the stoichiometry of the reaction and the known concentration of the sodium hydroxide solution to calculate the concentration of acetic acid in the vinegar sample.9. Repeat the titration at least two more times to ensure accurate and consistent results.This practical experiment demonstrates the use of acid-base titration in determining the concentration of an unknown solution, which is a common task in chemical industries for quality control and production processes.