Conductivities and Viscosities in Formamid and in Mixed Solvents. 91 



TABLE 52. Calcium Nitrate Continued. 

 In 50 per cent formainid and 50 per cent ethyl alcohol. 



10 



50 



100 



200 



400 



1600 



Molecular 

 Conductivity. 



15 



27.58 

 41.14 

 43.18 

 49.54 

 52.03 

 54.62 



25 



34.30 

 50.97 

 53.30 

 61.66 

 65 . 14 

 68.51 



35 



41.36 

 61.63 

 64.60 

 74.50 

 78.41 

 81.48 



Temperature Coefficients of 

 Conductivity. 



Per cent. 



15-25 



0.0243 

 .0238 

 .0234 

 .0244 

 .0251 

 .0254 



25-35 



K = 1.50X10- 5 1.90X10- 



. 0205 



.0209 



.0213 



.0208 



.0203 



.0189 

 2.40 X10- 5 



Conductivity 

 Units. 



15-25 



0.672 

 .983 

 1.012 

 1.212 



1.311 

 1.389 



25-35 



0.706 

 1.066 

 1.130 

 1.284 

 1.327 

 1.297 



Mol. 

 Cone. 



Viscosity and Fluidity. 



D25/4 



7,3.5 



<p35 



Temperature 

 Coefficients (<p) 



15-25 



25-35 



0.10 



.02 



Solv. 



0.9463 

 .9376 

 .9342 



0.02774 

 .02560 

 .02475 



0.02158 

 .01976 

 .01934 



0.01755 

 .01610 

 .01567 



36.05 

 39.06 

 40.40 



46.34 

 50.61 

 51.71 



56.98 

 62.11 

 63.82 



0.0285 

 .0296 

 .0280 



0.0230 

 .0227 

 .0234 



In 25 per cent formamid and 75 per cent ethyl alcohol. 



10 



50 



100 



200 



400 



1600 



Molecular 

 Conductivity. 



15 



19.48 

 32.03 

 37.69 

 43.17 

 48.19 

 55.88 



23 . 37 

 3S 2. 

 45.0s 

 51.78 

 57.93 

 67.36 



35 



27.72 

 45.07 

 52.78 

 60.70 

 68.35 

 79.66 



Temperature Coefficients of 

 Conductivity. 



Per cent. 



15-25 



0.0199 

 .0192 

 .0196 

 .0199 

 .0202 

 .0205 



25-35 



0.0185 

 .0177 

 .0170 

 .0172 

 .0179 

 .0182 



Conductivity 

 Units. 



15-25 



0.389 

 .618 

 .739 

 .861 

 .974 



1.148 



A"=1.05X10- 5 1.30X10- 5 1.54X10- 



25-35 



0.435 



.686 



.770 



.892 



1.042 



1.230 



DISCUSSION OF RESULTS. 



In tables 30 to 35, inclusive, are given the conductivity and viscosity 

 data for the ammonium, sodium, potassium, calcium, barium, and 

 strontium nitrates at the different temperatures studied. The con- 

 ductance values at infinite dilution were reached at dilutions below 

 M/600 for all except barium and calcium nitrates. Beyond this 

 dilution no measurements were made, since in most cases the solvent 

 correction becomes equal to or greater than one-half the observed 

 conductances. 



