OTHER PROPERTIES OF ELECTROLYTIC SOLUTIONS 



TABLE CXXIX. Continued 

 At 0.1 N. 



A v.. A A rr + 



KC1 . 

 KN0 3 

 KBr . 



130.0 



126.3 



. . 132.2 



KC10 3 119.6 



KBrO 3 112.1 



KI . 131.1 



311 



A X* 

 Y 



64.04 

 63.50 

 63.64 

 64.14 

 63.93 

 63.68 



Mean 54.03 Mean 63.82 

 A.D. 1.11 A.D. 0.21 



It will be observed that at 0.02 N the value of \ K+ varies from 57.78 



Ai^+ 



to 59.13 with a mean deviation of 0.50, while 



varies from 63.44 



to 64.14 with a mean deviation of 0.20. At a concentration of 0.1 N 

 the value of A^+ varies from 52.60 to 55.40 with a mean deviation of 



^K + 

 1.11. while the value of varies from 63.50 to 64.14 with a mean 



7 

 deviation of 0.21. It is evident that the conductance of the potassium 



ion in different salts is not the same, while the ratio 



is substan- 



tially the same. 45 These results, therefore, do not bear out the conclu- 

 sion that the conductance of an ion is independent of the other ion with 

 which it is combined. Leaving aside for the moment the strong acids 

 and bases, it appears that conductance and transference measurements 

 agree with the assumption that the conductance of a given ion varies 

 with the nature of its co-ion and that the difference in the conduction 

 of a given ion is proportional to the ionization of its salt. The reason 

 why the conductance of the chloride ion is found the same for different 

 electrolytes is due to the fact that the ionization of these electrolytes is 

 the same at the same concentration. If corrected values of the con- 

 ductance are employed, the ionization of sodium, potassium, and lithium 

 chlorides, as determined from conductance measurements, is substan- 

 tially the same up to 1.0 N. Up to a concentration where the viscosity 

 effects begin to become appreciable there is no certain evidence indicat- 

 ing that the relative speeds of the ions undergo change. In the case of 



45 This conclusion was reached by Dennison and Steele (Phil. Trans. A 205, 462 

 (1906) ). 



