Iowa Academy Science 



Plate IIA 



k*r< 



2S° 



ryridi/u. 



(f 



Ethyl AUvhc 



I- 



Py r id i />( 



Methyl AUoha 



(- Pyndi/iz 



Percent of Py r/d i ne 



Curves showing the influence of pyridine upon the electrode potentials of silver against 

 solutions of silver ions in water, methyl alcohol, ethyl alcohol and pyridine, and 

 in the binary solvents containing pyridine as one component. The upper curve in 

 each plot represents the most concentrated solution. 



