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What is the geometry of the complex ion [Cu(NH3)4]2+?
What is the geometry of the complex ion [Cu(NH3)4]2+?
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Q1
What is the geometry of the complex ion [Cu(NH3)4]2+?
Tetrahedral
Square planar
Octahedral
Trigonal bipyramidal
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The geometry of the complex ion [Cu(NH3)4]2+ is square planar.
Questions & Step-by-step Solutions
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Q: What is the geometry of the complex ion [Cu(NH3)4]2+?
Solution:
The geometry of the complex ion [Cu(NH3)4]2+ is square planar.
Steps: 8
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Step 1: Identify the central metal ion in the complex. In this case, it is Cu (copper).
Step 2: Determine the oxidation state of the copper ion in [Cu(NH3)4]2+. The overall charge is +2.
Step 3: Recognize that NH3 (ammonia) is a neutral ligand, meaning it does not contribute to the charge.
Step 4: Since there are four NH3 ligands, the copper must be in the +2 oxidation state to balance the +2 charge of the complex.
Step 5: Understand that copper(II) typically forms complexes with a coordination number of 4 or 6.
Step 6: For a coordination number of 4, the common geometries are square planar and tetrahedral.
Step 7: In this case, copper(II) with four NH3 ligands prefers a square planar geometry due to its d9 electron configuration.
Step 8: Conclude that the geometry of the complex ion [Cu(NH3)4]2+ is square planar.
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