Gastric acid has a pH value of 2 or 3. A pH of 7 is neutral. Excess gastric acid increases the acidity in the stomach and decreases the pH to as low as one. This commonly results in an upset stomach. Over-the-counter (OTC) medication called an antacid may be used for relief of these symptoms. Antacids contain chemicals called bases, which are the opposite of acids. Normally, the base dissolves into two pieces. One piece of the base binds to the acid to form a salt. The other may bind to create water and or a gas. As a result, the pH returns to a normal level.
Scientific and Medical Animations
Copyright ©2017 ALL RIGHTS RESERVED