FORM OF THE CONDUCTANCE FUNCTION 77 



the same slope, which follows from the fact that the value of m is ap- 

 proximately the same for these solutions. The greater the value of the 

 exponent m, the steeper the curve on the plot. A great many solutions 

 of this type have been measured and the results have been compared 

 with the equation. The deviation in no case appears to be very great, 

 from which it may be concluded that the equation holds to a considerable 

 degree of approximation. The values of the constants m and P for 

 various solutions are given in Table XXX. 10 



Many of the substances which appear in this table are not ordinarily 

 classed as typical electrolytes. They are, in general, basic compounds 



TABLE XXX. 



VALUES OF THE CONSTANTS OF EQUATION 12 FOR VARIOUS SOLUTIONS. 

 Liquid Hydrochloric Acid (HC1). 



Tempera- 

 Solute Formula ture m P 



Triethylammonium chloride (C 2 H 5 ) 3 N.HC1 100 1.42 5.75 



Acetamide CH 3 CONH 2 100 1.40 5.53 



Methylcyanide CH 3 CN 100 1.44 4.17 



Resorcinol C 6 H 4 (OH) 2 89 1.18 3.89 



Hydrocyanic acid HCN 100 1.46 3.33 



Toluic acid CH 3 . C 6 H 4 COOH 96 1.52 1.58 



Diethylether (C 2 H 5 ) 2 O 100 1.51 1.38 



Propionic acid C 2 H 5 COOH 96 1.47 1.21 



Acetic acid CH.COOH 96 1.42 1.09 



Benzoic acid C 6 H 5 COOH 96 1.42 0.94 



Butyric acid C 3 H 7 COOH 96 1.45 0.85 



Methylalcohol CH 3 OH 89 1.61 0.71 



Formic acid HCOOH 96 1.55 0.67 



Ethylalcohol C 2 H 5 OH 89 1.70 0.50 



Butylalcohol C 4 H 9 OH 89 1.62 0.38 



Liquid Hydrobromic Acid (HBr). 



Triethylammonium chloride (C 2 H 5 ) 3 N.HC1 81 1.51 4.03 



Thymol CH 3 . C 3 H 7 . C 6 H 3 OH 80 1.57 3.60 



Methylcyanide . . . CH 3 CN 81 1.53 2.48 



Acetamide CH 3 CONH 2 81 1.48 2.29 



Acetone (CH 3 ) 2 CO 81 1.63 1.88 



Metacresol m-CH 3 .C 6 H 4 OH 80 1.54 1.70 



Orthonitrotoluene o-CH 3 . C 6 H 4 NO 2 81 1.50 0.99 



Benzoic acid C 6 H 5 COOH 80 1.67 0.82 



Acetic acid CH 3 COOH 80 1.66 0.78 



10 Kraus and Bray, loc. cit. 



