Find a Gastroenterologist Near You. Changes in stool odor can be caused by the foods you eat. Even extremely foul-smelling stools can be due to changes in your diet. However, abnormally foul-smelling stools may also be a sign of a disease, disorder or condition. Examples include celiac disease, Crohnâs disease, cystic fibrosis, and intestinal infections.
It would be misleading to talk about molecular mass of a salt because salts (ionic compounds) are not molecules. The concept of âformula massâ is a formalism that recognizes that salts are not molecules. The formula mass is calculated from the simplest formula of an ionic compound just like the molar mass is calculated from the molecular formula of a covalent compound: by adding up the atomic masses of all the atoms in the formula.
An atomic mass (symbol: m a) is the mass of a single atom of a chemical element. It includes the masses of the 3 subatomic particles that make up an atom: protons, neutrons and electrons. Atomic mass can be expressed in grams. However, because individual atoms have very small masses, this is not very helpful. Instead, atomic mass is expressed in unified atomic mass units (unit symbol: u). 1 atomic mass unit is defined as 1/12 of the mass of a single carbon-12 atom.