Answer: This compound is made up of 1 mole of ferric ion and 3 moles of chloride ions.
Explanation:
The given compound is an ionic compound and is made up of ions: a cation and anion.
The name of [tex]FeCl_3[/tex] is ferric (III) chloride.
This compound contains 1 mole of Ferric ions [tex](Fe^{3+}[/tex] and 3 moles of chloride ions [tex](Cl^-)[/tex]
Ionization of [tex]FeCl_3[/tex] follows the equation:
[tex]FeCl_3(aq.)\rightarrow Fe^{3+}(aq.)+3Cl^-(aq.)[/tex]
Hence, this compound is made up of total 4 ions.