Question

Pentamine carbonate chromium (III) chloride (Write the formula)

Answer 1

Hope my answer helps you.

Answer 2

The formula for pentamine carbonate chromium (III) chloride is $[Cr(NH_3)_5(CO_3)]Cl$

Explanation:

Rules for naming of the coordination compounds :

1. The ligand named first and then the metal is named.

2. The charge of metal indicated with the Roman numerals and enclosed in the parenthesis after metal name.

3. The ligands are named in alphabetical order before the metal ion.

4. Ligands that include a numerical prefix in the name use the prefixes bis for 2, tris for 3, or tetrakis for 4 to indicate their number.

5. If the complex ion is an anion, we drop the ending of the metal name and add –ate.

The ligand ammine is $NH_3$ which is a neutral ligand, carbonato is $CO_3$ which has a charge of -2.

The formula for Pentamine carbonate chromium (III) chloride is $[Cr(NH_3)_5(CO_3)]Cl$

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