Introduction:

The goal of this experiment is to determine the concentration of a known solution, by titrating it with another strong electrolyte that will react with the first substance, and enter a non-ionic state. By doing this, we change the number of ions in the solution, and thus change its conductivity. One can accomplish by reacting a Barium Hydroxide solution of an unknown concentration with a titrant of Sulfuric Acid of known molarity. Then, by measuring the conductivity of the solution as one continues to add titrant to, and beyond the equivalence point, we can locate the point at which the conductivity is lowest, due to the lack of ions, as those from both compounds will have reacted completely. Then, as we know the chemical composition of both compounds, we can then calculate their stoichiometric ratio, and then use that, coupled with the known molarity of the Sulfuric Acid solution, to calculate the molarity of the Barium Hydroxide solution.