164 Conductivity of Aqueous Solutions. Part VI. 



the fifth, the measured conductance in reciprocal ohms, multiplied by 10 6 

 and corrected for the instrumental errors those in the slide wire and 

 the resistance coils and for the lead resistance (0.03 ohm) ; the sixth, 

 the equivalent conductance calculated from the value of the conductance 

 in the fifth column by applying the water correction (in the cases specified 

 in the last section), multiplying by the conductance-capacity,* and divid- 

 ing by the concentration given in the fourth column (also in the case of 

 the 0.019 and 0.049 normal sodium hydroxide solutions applying the cor- 

 rection for polarization described in the text following the experiments 

 with this substance). In the experiments with ammonium chloride, a 

 small quantity (about one-tenth as many equivalents) of ammonium 

 hydroxide were added in order to eliminate entirely the hydrolysis possi- 

 ble in such dilute solutions at the higher temperatures; the tables there- 

 fore contain additional columns giving the concentration of this substance 

 and the conductance of the solution corrected for that of the ammonium 

 hydroxide, which correction was calculated by the mass-action expression 



KbA in which Cb and C s represent the concentration of the base and 



Cs 



salt respectively, Kb the ionization-constant of the base (section 69, table 



64), and A its equivalent conductance when completely ionized (section 



67, table 59). 



*Unless otherwise stated, all measurements were mack in the bomb, whose con- 

 ductance-capacity (constant throughout the whole series of experiments) was 

 given for each temperature in section 63. 



