The Most Common Stomach Ulcer Symptoms. Stomach ulcers (often called peptic ulcers) are painful sores that develop in the lining of your digestive system. They usually form in the stomach but can also sometimes develop in the small intestine (especially a part called the duodenum) or the esophagus. Ulcers can cause a range of symptoms, some that are more mild and go away quickly, but others that linger and cause a good deal of pain.
Definition of Theoretical Yield. Maximum amount of a specified product that could be obtained from specified amounts of reactants, assuming complete consumption of limiting reactant according to only one reaction and complete recovery of product. (Compare with Actual Yield). Search the Dictionary.
chemistry definition. The study of the composition, properties, and reactions of matter, particularly at the level of atoms and molecules.