the Conductivity of Mixtures of Electrolytes. 281 



Data for the Calculations. 



Bender's paper contains all the data required for the cal- 

 culation of the conductivities of mixtures of solutions of 

 Potassium and Sodium Chlorides, with the single exception 

 of the specific molecular conductivity of the simple solutions 

 at infinite dilution. Owing to the want of this datum, I have 

 drawn the curves «/V = 0(V) by means of data based on 

 Kohlrausch and Grrotrian's and Kohlrausch's observations* 

 of the conductivity of solutions of KC1 and NaCl. They are 

 are as follows : — 



.-..",'.'. NaCl Solutions. 



Grrm.-molecules 

 per litre. 



Specific 



Molecular 



Conductivity. 



Litres per 

 grm.-molecule. 



Concentration 

 of Ions. 



05 



757 



2 



0-3682 



0-884 



710-42 



1-1312 



0-6109 



1 



695 



1 



0-6761 



1-830 



61859 



0-5465 



1-1012 



2-843 



539-93 



0-3517 



1-4932 



3 



528 



0-3333 



1-5418 



3-924 



466-35 



0-2548 



1-7802 . 



o 



398 



0-2 



1-936 



5-085 - 



392-53 



01967 



1-9416 



5-325 



37765 



0-1878 



1-9562 



5-421 



371-95 



0-1845 



1-9611 



KC1 Solutions. 



Grm. -molecules 



Specific 



Molecular 



Conductivity. 



Litres per 



Concentration 



per litre. 



grm.-molecule. 



of Ions. 



05 



958 



2 



3939 



0-691 



933-13 



1-4472 



0-5304 



1 



919 



1 



0-7558 



1-427 



890-70 



0-7008 



1-0452 



2-208 



855-52 



0-4529 



1-5535 



3 



827 



0-3333 



20409 



3-039 



823-95 



0-3291 



2-0592 



3-213 



817-94 



0-3112 



2-1612 



These data are quite sufficient for drawing the curves repre- 

 senting a/V as #(V) in the parts corresponding to small 

 dilutions, but they are few for the parts corresponding to the 



* Wiedemann's Annalen, vi. p. 37 (1879), and xxvi. p. 195 (1885). 



