Abstract
The conductance of hydrochloric acid in pure aqueous medium and in the presence of boric acid was measured at 25°C. At constant concentration of hydrochloric acid the conductance drops gradually with increase of concentration of boric acid. When dilute boric acid solutions are used as solvent the Λ/√C plots are linear and almost parallel and displaced downwards with increase of boric acid in the solvent. The results are explained as being due to viscosity effects. Transport number experiments indicate that the conductance of H4BO3+ ion is quite negligible and that the transport number of the Cl− ion is greater than in pure aqueous hydrochloric acid.
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