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The absorbance maxima observed for the following cobalt complexes ([Co(NH3)6]3+ ?max = 470 nm, [Co(NH3)5Cl]2+ ?max = 560nm, [Co(NH3)4Cl2]+ ?max = 630 nm, and [Co(NH3)3Cl3] ?max = 680 nm) can be identified with transitions involving d-electrons. a) Should the spectrochemical series apply for these complexes? Whyor why not? (HINT: Think of the criteria needed for these complexes to be fairlycompared.) b) Is the trend in wavelength the same as you would predict usingthe spectrochemical series?

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