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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.

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A known volume of 0.1 M solution of hydrobromic acid is reacted with 25 mL and the concentration of the potassium hydroxide is calculated from the stoichiometry of the reaction.

Titration is a kind of reaction in which the concentration of an unknown solution is determined by reacting a known volume of this solution with a known volume of a standard solution and carrying out the necessary stoichiometric calculations in order to obtain the concentration of the unknown solution.

To obtain the concentration of the potassium hydroxide solution, 25mL of this solution is reacted with a carefully measured volume of the  0.1 M solution of hydrobromic acid. The volume of  0.1 M solution of hydrobromic acid required to reach end point is used calculate the concentration of the potassium hydroxide solution.

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