On reaching the electrodes they yield up to them the
charges they carry, and thus pass from the state of ion into that of
ordinary atom. Moreover, for the solution to remain in equilibrium,
the vanished ions must be immediately replaced by others, and thus the
state of ionisation of the electrolyte remains constant and its
conductivity persists.
All the peculiarities of electrolysis are capable of interpretation:
the phenomena of the transport of ions, the fine experiments of M.
Bouty, those of Professor Kohlrausch and of Professor Ostwald on
various points in electrolytic conduction, all support the theory. The
verifications of it can even be quantitative, and we can foresee
numerical relations between conductivity and other phenomena. The
measurement of the conductivity permits the number of molecules
dissociated in a given solution to be calculated, and the number is
thus found to be precisely the same as that arrived at if it is wished
to remove the disagreement between reality and the anticipations which
result from the theory of Professor Van t' Hoff.
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