8 ROYAL SOCIETY OF CANADA 
TABLE I.—Continued. 
EQUIVALENT DEPRESSION FOR SIMPLE SOLUTIONS 

| ni 


Equivalent Depression. 
Concentration | nie | 
coefficient | 
(gr. eq. /1.) at 0° CS 
Observed. Calculated. Difference. 


(6) Sodium Sulphate (Naz SO,). 
CMOS Ee 2; 817; 




“050 “752 2°382 2387 | +0°005 
“055 743 2371 2°372 +0°001 
“060 736 2-360 2-360 --0-000 
070 +722 2340 2336 —0-004 
“080 712 2320 2°318 —0-002 
“100 694 2286 2288 +0°002 
“200 “624 2165 2168 +0°003 
“250 -600 2:120 0 0 ONE 126 +0°006 
“300 ‘578 2084 | 2-08 +0°005 
“350 “561 2045 |  2-060 +0°015 
“400 “546 202% | 204 +-0-009 
‘450 ‘535 1-993 2-015 +0°022 
‘500 +525 1-975 1-998 +0°028 
“600 ‘511 1-925 1-974 +0°049 



(7) Sulphuric Acid (4 H: S O;) 
k = 0°881 ; J = 2°746. 

“0406 +720 | 2224 2-294 +-0*000 



1016 “644 | 2:08 | 92-082 | © 0-002 
"1622 “609 | 2017 2°017 +0000 
“204 596 1°979 +0°004 
| (1:988) 1:992 
“406 "569 | 1:940 1:942 +0°002 
“608 -553 ATOS 1912 —0-006 
| 


It is impossible to say precisely what is the limit of error in the 
above observations of equivalent depression. Raoult,’ working with the 
best appliances and with long experience, finds himself unable to 


' Ztschr. f. phys. Chem. 27, 653, 1898. 
