IN AQUEOUS SOLUTION, AND THE EXISTENCE OF COMPLEX IONS. 
I2I 
Table II,—Potential Fall. 
iMargin. 
N. 
A. 
B. 
Ib-E,. 
Ino, 
0-574 
— 
0-20 
1-18 
0-5 
0-82 
— 
1-lG 
0-5 
0-98 
— 
1-10 
Bci 
Aa 
0-5 
0-73 
— 
0-45 
t-Mo- 
Cl 
2-0 
2-00 
— 
0-01 
if- 
1-0 
— 
1-GO 
0-G5 
= Sr - Cl 
1-0 
— 
1-02 
0-28 
^ Cl 
“ Ca 
0-5 
1-15 
—■ 
1-G9 
— 
2-0 
0-G5 
— 
1-92 
1-0 
1-53 
—■ 
2-82 
— 
2-0 
1-25 
— 
2-G7 
ig!c. 
0-5 
1-OG 
— 
1-04 
0-5 
2-04 
— 
0-47 
1-00 
— 
0-23 
0-5 
6-95 
— 
0-30 
T- Ac 
0-5 
0-82 
— 
0-98 
AT Ac 
Cl 
0-5 
— 
1-39 
1-13 
Ca — 
0-5 
— 
0-91G 
0-98 
OH 
0-5 
0-81 
— 
1-32 
From thi.s table it is seen that a very different electrical tension across the boundary 
is required for some pairs of solutions than for others. On the other hand, for the 
same pair of ions, a different value for the potential fall in the intermediate solution 
corresjDonds to apj^roximately the same change in potential slope. This is shown by 
-A.C 
the — margin with K, Mg, and Ca as common cation. Looked at from this stand¬ 
point, it seems that the change in jDotential fall required is some function of the 
velocities of the ions, and it is most probable that a connection will be found to exist 
YOL. CXCVIII.—A. R 
