Write IUPAC name of the following compound : \( Na[Ag(CN)_{2}] \)
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Solution and Explanation
• For compounds with a complex anion, the cation is named first.
• The name of the central metal in an anionic complex must end with the suffix "-ate."
• For silver, the Latin name "Argentum" is used to form the suffix.
Step 1: Calculate the oxidation state of Silver
Let the oxidation state of \( Ag \) be \( x \).
The charges are: - Sodium (\( Na^{+} \)) = \( +1 \) - Cyano (\( CN^{-} \)) = \( -1 \)
Equation: \( (+1) + [x + 2(-1)] = 0 \) \( 1 + x - 2 = 0 \Rightarrow x = +1 \).
Step 2: Identify the components for the name
1. Cation: Sodium 2. Ligands: Two cyano groups = dicyano 3. Metal: Silver in an anionic complex = argentate 4. Oxidation state: (I)
Step 3: Assemble the final name
The name is Sodium dicyanoargentate(I). The final answer is Sodium dicyanoargentate(I).
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