Electrolysis of Acidulated Water and Copper Sulphate Solution with Copper & Platinum Electrodes

Electrolysis of Acidulated Water:

The electrolytic cell used for acidified water is known as the Hoffman voltameter. It consists of two graduated tubes and a funnel tube. The electrolyteAn electrolyte is a substance that dissociates in water into charged particles called ions. Positively charged ions are called cations. Negatively charged ions are called anions. Simply, an electrolyte is a... More is introduced through the funnel tube.

The electrodes used are a pair of platinum plates which are placed at the bottom of the graduated tubes. Acidified water is used as the electrolyte. Water containing a small amount of acid dissolved in it is called acidified water. Dilute sulphuric acid is preferred.

Current is passed through the electrolyte when the taps are closed and a stream of bubbles forms around each platinum electrodeElectrodes are conductors, in the form of wires, rods or plates, through which current enters and leaves the electrolyte. When the current leaves the electrodes it is known as the cathode... More. Gaseous oxygen forms at the anodeAn anode is an electrode of a polarized electrical device through which conventional current enters the device. It is the positive part of electrolytes where oxidation takes place. More and gaseous hydrogen at the cathodeA cathode is the electrode from which a conventional current leaves the electrolyte. It is the negative part of the cell where reduction takes place. More. The ratio of oxygen to hydrogen formed is 1:2.

The ions present