AQUEOUS SOLUTIONS. ARCHIBALD. 



317 



the same units as in Table I. In calculating the concentration 

 of ions, the value of the molecular conductivity at infinite 

 dilution was taken to be 1080, according to Kohlrausch's* deter- 

 mination. 



Mixtures of equal volumes of equi-molecular solutions of 

 Zinc and Copper Sulphates were then prepared, and their con- 

 ductivity measured. In Table V are given the necessary data 

 for the calculation of the conductivity of each mixture examined, 

 together with the observed and calculated values and the 



o 



differences expressed as percentages. The different values are 

 expressed in terms of the same units as in Table II. 



TABLE V. 



Wied. Ann. Vol. xxvi (1885), p. 195. 



