The Name Of FeCl3 X 6 H2O Is? Iron Chloride Iron (III) Chloride Hexahydrate Iron Chloride Hexahydrade Iron (III) Chloride (VI) Hydrate
The Correct Answer and Explanation is:
The correct name of FeCl₃·6H₂O is:
Iron (III) Chloride Hexahydrate
FeCl₃·6H₂O is a hydrated salt composed of Iron (III) Chloride and six molecules of water of crystallization.
To break this down:
1. Iron (Fe) and Chloride (Cl):
- Iron is a transition metal and can exhibit multiple oxidation states.
- In FeCl₃, there are three chloride ions (Cl⁻), each with a charge of -1, contributing a total charge of -3.
- To balance this, the iron ion must have a +3 oxidation state, hence it is Iron (III).
2. Naming the Anhydrous Compound:
- The anhydrous form is FeCl₃, which is named Iron (III) Chloride.
- The Roman numeral III indicates the +3 oxidation state of iron.
3. Hydrate Part:
- The “·6H₂O” indicates that six water molecules are associated with each formula unit of the salt in its crystalline form.
- These water molecules are called waters of hydration.
- The prefix “hexa-” denotes six, and “hydrate” refers to water, so hexahydrate means “six water molecules.”
4. Full Name:
- Combining the name of the salt and the hydrate gives: Iron (III) Chloride Hexahydrate.
5. Incorrect Options Explained:
- Iron Chloride: Too vague; does not specify the oxidation state.
- Iron Chloride Hexahydrate: Still vague; does not indicate oxidation state.
- Iron (III) Chloride (VI) Hydrate: Incorrect format and “(VI) Hydrate” is not standard nomenclature.
Summary:
The correct IUPAC name FeCl₃·6H₂O is Iron (III) Chloride Hexahydrate, because it accurately describes both the iron oxidation state and the number of water molecules attached.
