Page:The fundamental laws of electrolytic conduction.djvu/81

 I chose such currents that a sufficient amount of silver was reduced before it began to drop off. When this threatened to occur the electrolysis was stopped.

Specific gravity at 11.1° C.: 1.3079.

It contained 1 part NAg to 2.48 parts water.

The current reduced 1.2591 gr. Ag in 1½ hours at a temperature of 11.2° C.

The solution about the cathode gave:

Before electrolysis. . . 17.4624 gr. ClAg

After " . 16.6796 " "

It lost 0.7828 gr. ClAg, or 0.5893 gr. Ag.

Hence the amount of the transferred silver is

1.2591

−0.5893

6698

0.6698 gr., or 6698/12591=53.2 per cent.

Specific gravity at 19.2° C.: 1.2788.

It contains 1 part NAg to 2.735 parts water.

The current from one cell reduced 1.909 gr. Ag at 19° C.

The solution at the cathode gave:

Before electrolysis. . . 15.9364 gr. ClAg

After " . 14.7233 " "

The loss is 1.2131 gr. ClAg, or 0.9132 gr. Ag.

The transference of silver is therefore

1.909

−0.9132

9958

0.9958 gr., or 9958/19090=52.2 per cent.

Specific gravity at 18.4° C.: 1.1534.

It contains 1 part NAg to 5.18 parts water.