What is the coordination number of the complex ion [Co(NH3)6]Cl3?

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Question: What is the coordination number of the complex ion [Co(NH3)6]Cl3?

Options:

Correct Answer: 6

Solution:

The coordination number is 6 because there are six ammonia ligands coordinated to the cobalt ion.

What is the coordination number of the complex ion [Co(NH3)6]Cl3?

What is the coordination number of the complex ion [Co(NH3)6]Cl3?

Step 1: Identify the complex ion in the question, which is [Co(NH3)6]Cl3.
Step 2: Look at the part inside the brackets, which is Co(NH3)6.
Step 3: Note that 'Co' stands for cobalt, and 'NH3' is ammonia, which is a ligand.
Step 4: Count the number of ammonia ligands attached to the cobalt ion. There are 6 ammonia ligands.
Step 5: The coordination number is defined as the number of ligands attached to the central metal ion.
Step 6: Since there are 6 ammonia ligands, the coordination number of the complex ion is 6.

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