Determine the name of the compound, V(ClO3)5.a. vanadium pentachlorideb. vanadium(III) acetatec. vanadium(V) chlorate
d. vanadium pentachloratee. vanadium pentachlorite
The Correct Answer and Explanation is :
e correct name for the compound V(ClO₃)₅ is vanadium(V) chlorate. Explanation:**
In emical nomenclature, the name of a compound provides information about its composition and the oxidation states of its elements. Let break down the compound V(ClO₃)₅ to understand its correct naming:
- Identifying the Cation (Metal):**
- The syol “V” represents vanadium, a transition metal.
- ntifying the Anion (Polyatomic Ion):
- The formu “ClO₃” denotes the chlorate ion, which consists of one chlorine atom covalently bonded to three oxygen atoms and carries a -1 charge.
- Detining the Oxidation State of Vanadium:
- In the compod V(ClO₃)₅, there are five chlorate ions, each with a -1 charge, contributing a total negative charge of -5.
- To bala thisthe vanadium ion must have a +5 oxidation state.
- Naming thompound:
- According to IUPAComenclature rules, when naming ionic compounds containing a metal with variable oxidation states, the oxidation state of the metal is indicated in parentheses using Roman numerals.
- Therefore, V(₃)₅ inamed vanadium(V) chlorate, indicating that vanadium is in the +5 oxidation state.
Evaluation of the en Options:
a. Vanadium pentachloride:
- This name suggests a comund composed of vanadium and chlorine atoms only, with the formula VCl₅. However, VCl₅ is not a stable compound under normal conditions; vanadium typically forms VCl₄ or VCl₃.
b. Vanadium(III) acet:
- This refers to a compound wre vanadium has a +3 oxidation state and is bonded to acetate ions (CH₃COO⁻). Its formula would be V(C₂H₃O₂)₃, which does not match V(ClO₃)₅.
c. **Vanadium(V) chlorate: – This correctly identifies the mpound as containing vanadium in the +5 oxidation state and chlorate ions, matching the formula V(ClO₃)₅.
d. *Vanadium pentachlorate: – This name implies a compound withive chlorate ions but does not specify the oxidation state of vanadium. While it might seem descriptive, it is not the standard IUPAC naming convention for such compounds.
e. Vanadium pentachlorite: The term “chlorite” refers to the Cl⁻ ion. A compound named vanadium pentachlorite would have the formula V(ClO₂)₅, which differs from V(ClO₃)₅.
Therefore, the most accurate and IU-mpliant name for V(ClO₃)₅ is vanadium(V) chlorate.