| URL | Title | Id |
|---|---|---|
| http://digfir-published.macmillanusa.com/hm_custom_osu/hmosu lab 23 voltaic and electrolytic cells w13.html | Chapter 23. Voltaic and Electrolytic Cells | 50d327f7b11c0f1921000000 |
| http://digfir-published.macmillanusa.com/hm_custom_osu/hmosu lab 23 voltaic and electrolytic cells w13_dlap.xml | DLAP questions | 50d327f7b11c0f1921000000 |