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You know the following about a coordination compound:(1) The partial empirical formula is KM(CrO₄)Cl₂(NH₃)₄.(2) It has A (red) and B (blue) crystal forms.(3) When 1.0 mol of A or B reacts with 1.0 mol of AgNO3,0.50 mol of a red precipitate forms immediately.(4) After the reaction in (3), 1.0 mol of A reacts very slowly with 1.0 mol of silver oxalate (Ag₂C₂O₄) to form 2.0 mol of a white precipitate. (Oxalate can displace other ligands.)(5) After the reaction in (3), 1.0 mol of B does not react further with 1.0 mol of AgNO₃.From this information, determine the following:(a) The coordination number of M

Respuesta :

For molecules and polyatomic ions the coordination number of an atom is determined by simply counting the other atoms to which it is bonded (by either single or multiple bonds). For example, [Cr(NH3)2Cl2Br2]− has Cr3+ as its central cation, which has a coordination number of 6 and is described as hexacoordinate.

What is coordination number with example?

The coordination number is the number of ligands attached to the central metal atom or ion. For example, tetra carbonyl nickel Ni(CO)4 has a coordination number of 4 as 4 CO ligands are attached to Ni atom.

How do you find coordination number?

Here are the steps for identifying the coordination number of a coordination compound.

  • Identify the central atom in the chemical formula. ...
  •    Locate the atom, molecule, or ion nearest the central metal atom.
  •    Add the number of atoms of the nearest atom/molecule/ions. ...
  •    Find the total number of nearest atoms.

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