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what is the definition of formula unit in chemistry. The number of units in a mole also bears the name Avogadros number or Avogadros constant in honor of the Italian physicist Amedeo Avogadro. The smallest repeating unit of a substance.
This quantity is called the formula mass. It is the lowest whole number ratio of ions represented in an ionic compound. A formula unit which I often abbreviate to fu just for fun is the empirical formula for an ionic compound.
There are 6 C atoms and 14 H atoms in a hexane molecule which has a molecular formula of C 6 H 14.
Let us calculate the formula unit mass of NaCl. A formula unit in chemistry is the empirical formula of any ionic or covalent network solid compound used as an independent entity for stoichiometric calculations. A formula unit in chemistry is the empirical formula of any ionic or covalent network solid compound used as an independent entity for stoichiometric calculations. The molecule for nonionic substances.