( 636 ) 
Results: 
NaCl. 
Concentration Observed decrease of eer dimt al 
in \the boiling point of the en ‘ een d 
gr. mols. per 1000 grs. of H,O. | pure water. dd 
ed 5 8 in mm. of Hg. 
0.0500 0.048 147 Loe 
0.0750 0.073 1% 1.93 
0. 1001 0.093 2.47 1.84 
0.5001 0.468 12.41 1.85 
1.0000 0.965 25.37 1.89 
NaCl. 
Boiling point of the pure water = 99.424° ¢= 5.18 !). 
Concentration in Elevation of the boiling Molecular elevation 
er, mols. per 1000 grs. of H,O.| point of the solution. [of the boiling yo 
0.0500 | 0.050 10.00 1.93 
0.0750 0.075 9.99 1.93 
0.1004 0.096 9.60 1.85 
0.5001 0.471 9.42 1.52 
1.0000 0.968 9.68 1.869 
2.0798 2.120 10,20 1.969 
NaCl. 
Boiling point of the pure water = 99.793° ¢= 5.19. 
Concentration in Elevation in the boiling | Molecular elevation : 
gr. mols. per 1000 ce. of H,O. | point of the solution. [of the boiling point. : 
0.0500 0.049 9.81 1.89 
0.1000 0.095 9.50 1.83 
0.5000 0.472 9.44 1.82 
u, 7497 0.717 9.56 1.84 
1.0000 0.970 9.70 1.869 
1) ¢= molecular 
0,02 72 
i 
warrant the calculation of 7; this has been done for all concentrations to facilitate 
the comparison with previous results. 
elevation of the boiling point calculated from yan ’r Horr’s for- 
N.B. Although very few of the solutions are weak enough to 
mulae ¢ = 
