What is the product of the electrolysis of dilute NaCl?

The net process is the electrolysis of an aqueous solution of NaCl into industrially useful products sodium hydroxide (NaOH) and chlorine gas.

What happens in the electrolysis of NaCl?

When an electric current is passed through concentrated sodium chloride solution, hydrogen gas forms at the negative electrode , chlorine gas forms at the positive electrode, and a solution of sodium hydroxide also forms.

Is electrolysis of NaCl a chemical change?

Electrolysis of NaCl This results in chemical reactions at the electrodes and the separation of materials.

What chemical reaction happens in electrolysis?

electrolysis, process by which electric current is passed through a substance to effect a chemical change. The chemical change is one in which the substance loses or gains an electron (oxidation or reduction).

What is the function of NaCl in the electrolysis of water?

Electrolysis of an aqueous solution of table salt (NaCl, or sodium choride) produces aqueous sodium hydroxide and chlorine, although usually only in minute amounts. NaCl (aq) can be reliably electrolysed to produce hydrogen.

What is electrolysis 8th?

Electrolysis is the production of a chemical reaction by passing an electric current to liquid containing ions.

What is the reaction of electrolysis of water?

Overall reaction: 2 H2O(l) → 2 H2(g) + O2(g) The number of hydrogen molecules produced is thus twice the number of oxygen molecules. Assuming equal temperature and pressure for both gases, the produced hydrogen gas has, therefore, twice the volume of the produced oxygen gas.

What type of substance is NaCl?

salt (NaCl), sodium chloride, mineral substance of great importance to human and animal health, as well as to industry. The mineral form halite, or rock salt, is sometimes called common salt to distinguish it from a class of chemical compounds called salts.

What happens during the electrolysis of dilute NaCl solution?

During the electrolysis of dilute NaCl solution, Na+, Cl- and water are present. When concentrated NaCl solution undergoes electrolysis, sodium hydroxide and hydrogen are produced at the cathode while chlorine is produced at the anode. The electrolysis of concentrated sodium chloride solution occurs industrially in a Nelson or diaphragm cell.

What is the product of electrolysis of sodium hydroxide?

With a side product of sodium hydroxide resulting from the reaction of sodium and water. The product of electrolysis depends on the concentration of sodium chloride aqueous solution. Water has very low conductivity and the small amount of ionic sodium chloride helps the ionic conductivity of the solution.

What happens to water at the cathode in a sodium chloride reaction?

At the cathode (C), water is reduced to hydroxide and hydrogen gas. The net process is the electrolysis of an aqueous solution of NaCl into industrially useful products sodium hydroxide (NaOH) and chlorine gas.

What is the equation for electrolysis of a solution?

However when the solution is concentrated, the anode is surrounded by lots of chlorides and extremely few hydroxides so it’s almost as if the hydroxides are not there and the chlorides are discharged. Electrolysis can be considered an equilibrium reaction. In the equilibrium for the reaction, the equation is Cl2 + 2 e- <-> 2 Cl-.