ON THE BOILING POINTS OF AQUEOUS SOLUTIONS OF ELECTROLYTES. 213 





Sodium Bromide. 





Litres per 

 Grm. eq. 



Mv/,"x 



Eq. Conductivity. 



•250 



•380 



1444 



•500 



•452 



1811 



1 



•555 



j 2085 1 

 \ 2097 ( 



2 



645 



2426 



4 



•719 



2734 



10 



•761 



2873 



20 



•801 



3026 



3000 





3774 



Ammonium Bromide. 



Lithium Bromide. 



Cadmium Iodide. 



Litres per 





Eq. Con- 



Litres per 



,Uy//Ux 



Eq. Con- 



Litres per 





Eq. Con- 



Grm. eq. ^ 



V/Moo 



ductivity. 



Grm. eq. 



ductivity. 



Grm. eq. 



Uv/Mco 



ductivity. 



•184* 



413 



1540 



100 



•151 



470 



•312* 



•081 



269 



•264* 



477 



1775 



143 



•238 



716 



•500 



098 



324 



•333* 



524 



2083 



•200 



•317 



986 



1 



•122 



406 



•5 



599 



2255 



■500 



•494 



1534 



2 



•157 



500 



1 



655 



2438 



1 



'575 



1786 



5 



•227 



755 



2 



721 



2683 



2 



•666 



2068 



10 



•296 



984 



4 



786 



2926 



5 



•737 



2289 



1000 





3317 



10 



851 



3168 



10 



•776 



2409 









20 



906 



3373 



1000 





3102 









40 



936 



3483 















1000 





3721 















Duplicate readings were taken occasionally, for the normal or half-normal solution, 

 one with each tube : the one thus acted as a check on the other. The duplicate values 

 as a rule were approximately the same : in some instances they were the same. The 

 conductivity value at two-thousandth was sometimes almost the same as that at one- 

 thousandth normal. In one or two instances it was considerably more. 



The duplications at normal or half-normal and infinity indicate an error limit for the 

 former of \ per cent., and for the latter of 2^ per cent. It has been pointed out on 

 page 219 that very great accuracy is not required for my purpose in the ionization 

 coefficients. 



The results given above have been represented graphically by the aid of the follow- 

 ing curves : Mv/Voo has been plotted (1st) against gramme equivalents per litre, (2nd) 

 against grammes of salt added to a constant amount of solvent, and (3rd) against per- 

 centage composition. If these be spoken of as curves 1, 2, and 3, it will be seen that 

 the curves No. 2 are very much straighter than curves No. 1, and that those of 

 No. 3 are still straighter. 



