Electrical Conductance in. Absolute Ethyl Alcohol. 



117 



In applying this method to our results we have made use of the 

 values of percentage dissociation obtained by means of the equation of 

 Noyes. It has been found that the three salts, sodium trichloroacetate, 

 salicylate, and orthonitrobenzoate, include examples of all the various 

 types of salts encountered in the present investigation. 



The calculation of A is illustrated by table 97 



TABLE 97. 



Probable Ao= 37.8. 



Table 98 contains the most probable values of A at 25 for all the 

 salts studied by the authors and calculated in the manner just indi- 

 cated. 



TABLE 98. 



The values of A for the organic acids are calculated from those 

 of the sodium salts by means of the following equation: 



A acid=A Na salt+A HCl A NaCl 



The values of A HC1 and A NaCl have been obtained from the 

 conductance data of Goldschmidt 1 by means of the equations of Noyes 

 and of Randall. A HC1 can be very precisely fixed at 82.0 mhos. 

 A NcCl is most probably 42.0 mhos, with a possible variation of ^O.S 

 mho. Substituting these values in the equation above, we have 



A acid=A Na salt +40 



. physik Chem. 89, 131. 142 (1914). 



