QQuestionChemistry
QuestionChemistry
"Give the name or formula of the following ionic compound:
Vanadium (V) phosphate"
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Answer
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Step 1: Identify the cation and anion in the given ionic compound.
The cation (positive ion) is vanadium in its oxidation state of + 5, often written as V(V) or V^5 +. The anion (negative ion) is phosphate, which has a charge of - 3. Its formula is PO4^3 -.
Step 2: Write the name or formula of the ionic compound.
To name the ionic compound, we simply combine the name of the cation and anion, writing the name of the cation first followed by the name of the anion with its charge omitted. In this case, the name of the compound is vanadium(2$) phosphate. Alternatively, we can write the formula of the compound by balancing the charges. Since the cation has a charge of + 5 and the anion has a charge of - 3, we need three phosphate ions to balance the charge of one vanadium ion. Thus, the formula of the compound is VPO^4 (often written in its ionic form as V^5 +[(PO4)3 -]).
Final Answer
The name of the given ionic compound is vanadium(2$) phosphate, and its formula is VPO^4 or V^5 +[(PO4)3 -].
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