The Hoffman Electrolysis Apparatus is used for the qualitative and quantitative study of the electrolytic decomposition of electrolytes such as water and hydrochloric acid. Contents: * 1 glass electrolysis unit * 1 support stand with rod * 1 burette clamp * 1 extension clamp * 1 bosshead clamp * 2 platinum electrodes * 2 carbon electrodes * 1 activity guide