Among the following complexes of Cu^+2, CuCl_4^-2, Cu(CN)_4^-2, Cu(NH_3)_4^+2, t

Question

Among the following complexes of Cu^+2, CuCl_4^-2, Cu(CN)_4^-2, Cu(NH_3)_4^+2, the one that absorbs the shortest wavelength is: _____ The name of the compound with the formula: [Co(NH_3)_3 (H_2O)(CO)Br]SO_4 is: _____ Among the compounds: [Co(NH_3)_3Cl]SO_4; K[Co(NH_3)_4]Cl_2; [Co(NH_3)_6]Cl_3, the one that shows stereoisomerism is: _____ A transition metal complex ion with octahedral geometry absorbs light of lambda_max 484 nm wavelength. The crystal field splitting, Delta_o in kJ for this complex is: _____ kJ (h = 6.626 times 10^-34 J.s and C = 3.0 times 10^8 m/s and 1m = 1 times 10^9 nm).

Explanation / Answer

10.

E=hc/

= (6.626*10^-34)(3*10^8)/(484*10^-9) = 4.107 *10^-22kJ

8. aquatriamminebromocarbonylcobalt (III) Sulphate

9. [Co(NH3)3Cl]SO4

Geometric isomerism (also known as cis-transisomerism or E-Z isomerism) is a form of stereoisomerism. This page explains whatstereoisomers are and how you recognise the possibility of geometric isomers in a molecule

7. CuCl4-2

Largest separation in energy is observed

Larger energy. so lower wavelength.

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