What Is the Chemical Formula for Carbonated Water?

The chemical formula for carbonated water is H2CO3, as stated by Reference.com. Carbonated water is created by dissolving carbon dioxide gas in regular drinking water.

Carbonated water is also known as club soda, sparkling water, fizzy water, soda water and seltzer. Carbonated water was first made by Joseph Priestly. He discovered a method of infusing water with carbon dioxide by suspending a bowl of water above a vat of fermenting beer.