90 G. J. BURROWS. 



It will be noticed in the preceding table that the value 

 of v s is greater in the mixture than in either of the 

 simple solvents. This was found to be the case with all 

 solutes whose specific volumes were determined in water- 

 alcohol mixtures, several examples are given in the follow- 

 ing tables. The specific contraction A v observed in the 

 preparation of the different mixtures used as solvents is 

 stated in each case. The percentages of alcohol given 

 are by weight. 



Table XIX. 

 Solute — Carbamide. Temp 25° C 



(a) In water (d = -997073. 



A di v s 



2-6329 1-003912 -737 



5-0484 1*009800 -738 



7-3010 1-015198 -740 



14-4848 1-030884 -743 



(b) In ethyl alcohol (d = -785211). 

 2-4796 -794191 -677 

 2-8160 -795421 -678 

 3-5211 -797950 -676 

 5-4320 -804559 -679 



(c) In water-alcohol (24-41 per cent, alcohol). 



d = -959875 A v = -0255 cc. 



2-3307 -965917 -756 



5-4357 -973611 -757 



11-8262 -988369 -758 



(d) In water-alcohol (3570 per cent, alcohol). 



d = -940129 A v = -0326 cc. 

 1-9700 -945452 . -754 

 3-5158 -949373 -759 

 6-8602 -957711 -760 

 9-8484 -964845 -760 

 13-5561 -973289 -760 



