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Last updated date: 26th Nov 2023
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MVSAT Dec 2023

Write the formula of the following compounds sodium hexanitrito-N-cobaltate (III).

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Hint: We know that Coordination compounds are particles that present one or numerous metal communities that are bound to ligands. These edifices can be unbiased or charged. At the point when the complex is charged, it is balanced out by adjoining counter-particles. An unpredictable particle has a metal particle at its middle with various different atoms or particles encompassing it. These can be viewed as appended to the centre particle by arrange (dative covalent) bonds and now and again, the holding is in reality more confounded than that. The atoms or particles encompassing the centre metal particle are called ligands.

Complete answer:
We have to remember that the sodium hexanitrito-N-cobaltate (III) is a coordination compound with the formula \[N{a_3}Co{\left( {N{O_2}{\text{ }}} \right)_6}\]. The anion of this yellow-shaded salt comprises a cobalt (III) centre N-attached to six nitrito ligands. It is a reagent for the subjective test for potassium and ammonium particles.

Now we can discuss about the standards for composing recipe of coordination compounds are as per the following:
First and foremost, we compose the image of the centre molecule.
At that point, we compose the image of the ligands appended to the centre molecule. The request for composing ligands is with the end goal that negative ligands are composed first, at that point impartial ligands and at the last sure ligands.
The equation of ligands is written in sequential request, in the event of more than one kind of various ligands.
The ligands are put in a basic section.
The quantity of ligands appended to the centre metal particle is meant as addendums in numbers soon after the sections of ligands.
We close this coordination circle in a square section.
We ought not to keep a hole between any particles in the recipe.
The charge of the coordination circle is composed on the right-hand side, outside of the square section as an addendum.