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Give the wavelengths of maximum absorption for each solution as shown in the spectra provided. Use...

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Chemistry

Give the wavelengths of maximum absorption for each solution asshown in the spectra provided. Use the absorption wavelengths toexplain why the [Ni(H2O)6] 2+ solution appears yellow-green but the[Co(H2O)6] 2+ solution appears pink.

[Ni(H2O)6] 2+ maximum absorbance at 720 nm

[Co(H2O)6] 2+ maximum absorbance at 510 nm

Answer & Explanation Solved by verified expert
3.5 Ratings (344 Votes)
When six ligandsapproach a metal center to form an octahedral complex the fivedegenerate dorbitals split into three lowerenergy degenerate t2gorbitals and two higherenergy degenerate eg orbitals The distanceof the splitting between the t2g and eg orbitals is dictated by thestrength of the ligand according to the spectrochemicalseriesHunds rule stillapplies and electrons fill orbitals one at a time but they fill inaccordance to size of the    See Answer
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