The purpose of this lab was to determine the stoichiometric coefficients in a chemical reaction using conductivity.

Ionic compounds dissociate in aqueous solutions, which allows ions to form. The ions present in a solution are responsible for the conductivity. With a greater ion concentration, the conductivity will also have greater charges. In a chemical reaction where two solutions are combined and the ions are removed in the form of gas or precipitate, the conductivity will be reduced because there are fewer ions present.

For Example:

When solutions are combined in any ratio other than the stoichimetric ratio, there will be an excess of ions in one of the reactants, which will provide greater conductivity. When two solutions are combined so that the ratio is proportionate to the reactant, the conductivity will be reduced, because there will be less excess ions present.

For the experiment we studied the raction between Ag+ and an unknown ion Bn-