Coordination complex of Cr
Question#1
Please give the answer and explain how to find the following.
For [Cr(NH3)2(en)2]Cl3
a) give the oxidation number
b) give the coordination number of Cr
Question#2
Give the formula of the compound.
calcium triaquabromodicyanoferrate(II)
Question # 3
An atom in a certain compound uses sp^2 hybrid orbitals. How many sp^2 hybrid orbitals are there on the atom?
Question #4
In a certain molecule a certain atom uses sp3d hybrid orbitals. How many sp3d orbitals are on the atom?
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SOLUTION This solution is FREE courtesy of BrainMass!
Q1. [Cr(NH3)2(en)2]Cl3
Let 'x' be oxidation state of Cr.
x +2(0) + 2(0) +3(-1) = 0. Hence x = +3
NH3 is monodentate and en is bidentate. Hence there is a total of 6 ligand binding sites to Cr which gives it a coordination number of 6. The 3Cl are not part of the coordination as those are ionic bonds.
Q2. Ca[Fe(H2O)3 (CN)2 Br]2
Q3. Number of hybrid orbitals = number of atomic orbitals used. Three atomic orbitals 1 's' + 2 'p' are used to form sp^2. Hence 3 hybrid orbitals form.
Q4. Similarly there should be 5 coming from 1 's' + 3 'p' + 1 'd'.
© BrainMass Inc. brainmass.com December 24, 2021, 11:09 pm ad1c9bdddf>https://brainmass.com/chemistry/bonding/coordination-complex-542286