554 



J\[r Tiohinson, The Adsorption 



The correspondiug values for k are 



205, 2-30, 2-27, 2-08, 2-25. 

 Mean = 219. 



c 



If the values of log - and log k + n log c, be respectively plotted, 



the resulting curve is approximately a straight line. 



Eayp&t^ments ivith Hydrogen Bromide. 



Ejyperiment I. 



Weight of carbohydrate in each case, 0'5 gm. 



Mean temperature, 15"5° C. 



Time of experiment, 19'5 hours. 



Volume of solution of acid in chloroform added, 25 c.c. 



Strength of solution, 000758 gm. of acid per c.c. 



Weight of acid added, 01895 gm. 



Hydrogen Bromide. Experiment II. 



Weight of carbohydrate used, O'S gm. 



Temperature, 17° C. 



Time of experiment, 18-5 hours. 



Volume of solution of acid in chloroform added, 30 c.c. 



Strength of solution, 000632 gm. per c.c. 



Weight of acid added, 01986 gui. 



