Notices of the proceedings at the meetings of the members of the Royal Institution of Great Britain with abstracts of the discourses . creases with the dilution, even if this is very high (1000or more molecules of water to one molecule of ZnS04), we are led tothe hypothesis that not all, but only a part of, the ZnS04 molecules 1904.] on Development of the Theory of Electrolytic Dissociation. 557 take part in the transport of electricity. This part increases withthe dilution in the same proportion as the molecular conductivity limiting value A-s is approached at innnite dilution, and corr
Notices of the proceedings at the meetings of the members of the Royal Institution of Great Britain with abstracts of the discourses . creases with the dilution, even if this is very high (1000or more molecules of water to one molecule of ZnS04), we are led tothe hypothesis that not all, but only a part of, the ZnS04 molecules 1904.] on Development of the Theory of Electrolytic Dissociation. 557 take part in the transport of electricity. This part increases withthe dilution in the same proportion as the molecular conductivity limiting value A-s is approached at innnite dilution, and corre-sponds to the limit that all molecules conduct electricity. The con-ducting part of the molecules I called the active part. It mayevidently be calculated as the quotient k: hs. If now this new conception were only applicable to the explana-tion of the phenomena of electric conductivity, its value had not been60 very great. But an inspection of the numbers of Kohlrausch andothers for the conductivity of the acids and bases, compared with themeasurements of Berthelot and Thorasen on their relative strength Molecular Conductivity. tcr too iooo Dilution Fig. 5. with regard to their chemical effect, showed me that the best con-ducting acids and bases are also the strongest. I was thereby led tosuppose that the electrically active molecules are also chemicallyactive. On the other hand the electrically inactive molecules arealso chemically inactive. In this connection I would mention theremarkable experiments of Gore, which were easily explained by thenew manner of view. Concentrated hydrochloric acid, free fromwater, has no action on oxides or carbonates. Now this hydrochloricacid is almost incapable of conducting the electric current, whereasits aqueous solutions conduct very well. The pure hydrochloricacid contains, therefore, no (or extremely few) active molecules, and 2 p 2 558 Professor Svante Arrhenius [June 3, this agrees very well with the experiments of Gore. In the same w
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