348 Dr. G. Gore on Chemical 



Table IX. — Influence of Two Halogens and One Acid. 



Ingredients. 



E.M.F. 



Mixtures. 



E.M.F. 



Calculated 

 E.M.F. 



Change of 

 E.M.F. 



Per 



cent. 



Cl+Br. 



Cl+I. 



Br+I. 



1-8992 

 1-7133 

 1-69338 



HI + (Cl+Br). 

 HBr+(Cl+I). 

 HCl+(Br + I). 



1-6847 

 1-7076 

 1-6847 



1-5249 

 1-5814 

 1-6464 



Gain '1598 m 

 „ -1262 

 „ -0383 



1048 

 7-98 

 2-33 



The additional halogen did not prevent the three mixtures 

 attaining nearly the same final state. 



Table X.- 



-Influence of One Halogen and Two Acids. 





Ingredients. E.M.F. 



Mixtures. E.M.F. 



Calculated 

 E.M.F. 



Change of 

 E.M.F. 



Per 

 cent. 



HBr+HI. 127858 

 HC1+HI. 1-3329 

 HCl+HBr. 1-3529 



C1+ (HBr+HI). 1-5274 

 Br+(HCl + HI). 1-4702 

 I+(HCl+HBr). 1-4072 



1-3751 

 1-5119 

 1-4015 



Gain -1523 = 

 Loss -0417 

 Gain -0057 



11-11 



2-76 



•40 



The additional acid retarded the attainment of a state of 

 stable chemical equilibrium similar to the effect of an addi- 

 tional salt (see Table II.). 



Section C— Halogens + Bases. 



Strength of solution = 1 equivalent weight in grains in 

 1800 grains of water. 



Table XL — With Al as Positive Metal. 



Ingredients. E.M.F. 



Mixtures. 



E.M.F. 



Calculated 

 E.M.F. 



Change of 

 E.M.F. 



Per 



cent. 



Br water. 1*5816 



KHO solution. L3814 



After heating 1 min. to 



90° C 



Br + KHO. 



1-5244 

 1-5101 



1-4991 



Gain -0253 = 

 „ -0110 



1-68 

 •73 



Table XII. — With Sn as Positive Metal. 



Ingredients. E.M.F. 



Br water. 12213 



KHO solution. -9210 



After heating 1 min. to 



90° C 



Mixtures. E.M.F. 



Br+KHO. 



•9067 



Calculated 

 E.M.F. 



1-0976 



Change of Per 

 E.M.F. cent. 



Loss -1480 = 13-49 

 „ -1909 17-40 



