Microchem
Microscale Chemistry Experimentation for Teachers







8.  A convertor for charging a model car battery

* Two sheets of lead are connected to an electric converter.
* A voltage of 3 V DC are needed.
* These electrodes are dipped into a tiny container with sulfuric acid 20%.

After some minutes the positive electrode is covered by a brown layer of lead-(IV) oxide.


Electric multimeter to measure voltage and current of the model car battery

 Copyright: M.K.El-Marsafy                                 first published: 1989
last modification:  25.11.2000