CONCENTRATED AQUEOUS SOLUTIONS, AND HYDRATION OF THE SOLUTE. 857 



per gramme equivalent with concentration up to a concentration of about 7 gramme 

 equivalents per litre. When this concentration is reached, further increase of 

 concentration, as indicated by the tables and the curves, results in diminishing 

 the rate of increase of elevation per gramme equivalent with concentration, in the case 

 of some salts the rate becomes negative. That is, a point in concentration may be 

 reached for some salts when further increase of concentration results in a diminution 

 of the elevation per gramme equivalent. This is clearly indicated by the curves for 

 ammonium chloride and barium bromide. 



The curves for calcium bromide, calcium chloride, and lithium bromide show a 

 distinct decrease of the rate of increase of elevation per gramme equivalent with con- 

 centration for concentrations higher than 7 gramme equivalents per litre. On the other 

 hand, for zinc sulphate an almost stationary value was obtained for elevation per gramme 

 equivalent from a concentration of "5 gramme equivalents per litre upwards ; this is 

 shown by the parallelism of the curve for this salt to the gramme equivalent axis. 





Calcium 



Bromide. 



Strontium 



Bromide. 



Cadmium l 



Chloride. 





Grm. eqs. per 



Elev. per Grm. 



Grm. eqs. per 



Elev. per Grm. 



Grm. eqs. per 



Elev. per Grm. 





Litre. 



eq. 



Litre. 



eq. 



Litre. 



eq. 





•270 



•29 



1-335 



•64 



•330 



•39 





•739 



•39 



2-232 



•73 



1-512 



•32 





1-570 



•43 



3381 



•93 



2-446 



•30 





2-522 



•47 



4-085 



1-16 



3-182 



•32 





3-070 



•52 



5-463 



1-30 



3-884 



•29 





3-696 

 4-302 



•57 

 •63 







4-390 

 4-936 



•30 









•30 





4-882 



■69 







5-892 



•31 





5-562 



•76 







6-550 



•32 





6-100 

 6-662 



•82 

 •90 



















7-041 



•96 













7-662 



•98 







Lithium 



Iodide. 





8-030 



1-04 



Lithium C 



Chloride. 









8-44 



1-07 

















Grm. eqs. per 



Elev. per Grm. 



Grm. eqs. per 

 Litre. 



Elev. per Grm. 









eq. 





Calcium ( 



Chloride. 



Litre. 



eq. 









•201 











•84 









•250 



•92 



1-152 



•75 





Grm. eqs. per 

 Litre. 



Elev. per Grm. 

 eq. 



•922 

 1-592 



•80 

 1-04 



1-590 

 2-250 



•90 

 LOO 









5-31 



7-54 



1-75 

 1-85 



2-940 

 3-368 



1-07 









1-13 





•530 



•69 



812 



2-08 



3-88 



L26 





1-982 



•85 



8-48 



231 



4-53 



1-28 





2-684 



•98 



9-08 



2-40 



5-27 



1-30 





5320 



1-33 



9-68 



2-47 



5-96 



1-35 





7-442 



1-60 



10-34 



2-73 



6-56 



1-39 





8-784 



1-8 



1226 



3-12 



7-08 



1-46 





10-981 



1-9 



12-76 



3-25 



7-44 



1-51 





12-82 



2-0 



13i4 



3-36 



8-04 



1-59 



