A student sets up a titration apparatus with 25 mL of potassium hydroxide in the flask. In three to five sentences, explain how the student can use a 0.1 M solution of hydrobromic acid to determine the concentration of potassium hydroxide in the reaction

Answer 1

To determine the concentration of potassium hydroxide, the student can slowly add the 0.1 M solution of hydrobromic acid to the flask containing the potassium hydroxide. As the acid is added, it will react with the hydroxide ions in the potassium hydroxide solution, resulting in the formation of water and a salt. The reaction will continue until all of the hydroxide ions are consumed, which can be determined by monitoring the pH of the solution using a pH indicator or pH meter. By determining the amount of acid required to neutralize the hydroxide ions, the concentration of the potassium hydroxide solution can be calculated using the equation C1V1 = C2V2, where C1 is the concentration of the acid, V1 is the volume of acid used, C2 is the concentration of the hydroxide solution, and V2 is the volume of hydroxide solution.