Question

Use the reaction to complete the activity.

KOH + HBr → KBr + H2O

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.

(4 points)

Answer 1

[AI-generated answer — Bot GPT 3.5]

The student can start by noting the initial volume of hydrobromic acid in the burette. They can then slowly add the hydrobromic acid into the flask containing the potassium hydroxide while stirring, until a color change occurs. The color change indicates that the reaction is complete. At this point, the student can record the final volume of hydrobromic acid in the burette. Since the volume of the hydrobromic acid needed to react completely with the potassium hydroxide is known, the student can use this information to calculate the concentration of the potassium hydroxide.