ELECTROMOTIVE FORCES IX PYRIDINE 



63 



TABLE VIII. 

 Concentration Cells in Ethyl Alcohol and Pyridine at 0° 



Nx-N 2 



0.5 —0.1 

 .05 

 .025 

 .01 

 .005 



0.1 — .05 

 .025 

 .01 

 .005 

 .05 — .025 

 .01 

 .005 

 .025— .01 



.005 

 .01 — .005 



100 Ethyl 



75 E-25 P 50 E-50 P 25 E-75 P 



100 

 Pyridine 



.013 

 .023 

 .044 

 .056 

 .010 

 .032 

 .044 

 .020 

 .034 

 .012 



.055 

 .087 

 .096 

 .112 

 .130 

 .031 

 .040 

 .056 

 .074 

 .009 

 .025 

 .043 

 .016 

 .034 

 .018 



.042 

 .058 

 .067 

 .089 

 .111 

 .016 

 .024 

 .047 

 .069 

 .008 

 .031 

 .053 

 .022 

 .044 

 .022 



.045 

 059 

 .072 

 .109 

 .111 

 .014 

 .027 

 .063 

 .066 

 .013 

 .049 

 052 

 .036 

 039 

 .003 



.038 

 .046 

 .060 

 .075 

 .093 

 .008 

 .021 

 .037 

 .055 

 .013 

 .029 

 .047 

 .016 

 .033 

 .018 



TABLE IX. 

 Electrode Potentials in Methyl Alcohol-Pyridine Series at 25°. 



X 



100 Methyl 75 M-25 P 50 M-50 P 25 M-75 P 

 volts volts volts volts 



100 

 Pyridine 

 volts 



.5 



.1 



.05 

 .025 

 .01 

 .005 



1.0975 

 1.0799 

 1.0707 

 1.0507 

 1.0286 



.8105 

 .7306 

 .7145 

 .6959 

 .6766 

 .6612 



.7177 

 .6541 

 .6369 

 .6201 

 .6000 

 .5834 



.6386 

 .5911 

 .5690 

 .5520 

 .5426 

 .5280 



.5866 

 .5470 

 .5367 

 .5255 

 .5066 

 .4853 



TABLE X. 

 Electrode Potentials in Methyl Alcohol-Pyridine at -0°. 



X 



100 Methyl 75 M-25 P 

 volts volts 



50 M-50 P 



VOLTS 



25 M-75 P 



VOLTS 



100 

 Pyridine 



VOLTS 



.5 



.1 



.05 

 .025 

 .01 

 .005 



1.0916 

 1.0706 

 1.0611 

 1.0330 

 1.0167 



.7811 

 .7126 

 .6970 

 .6814 

 .6628 

 .6493 



.6934 

 .6233 

 .6184 

 .6017 

 .5851 

 .5614 



.6175 

 .5658 

 .5522 

 .5369 

 .5243 

 5120 



.5678 

 .5296 

 .5216 

 .5081 

 .4926 

 .4746 



Mean Temperature Coefficients of Electrode Potentials. 



+.000368 +.00098 j +.0014191 +.001352| +.001293 



