The complex ion [Co(OH₂)₆](³⁺)is blue in an aqueous solution.Estimate the crystal field splitting energy (in kJ/mol)for this ion. A) 199 kJ/mol B) 282 kJ/mol C) 328 kJ/mol D) 127 kJ/mol E) 302 kJ/mol

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Quizplus · Accepted Answer

The color of a complex ion is related to the crystal field splitting energy (Δ). For [Co(OH2)6]3+, which is blue, the energy corresponds to a wavelength of approximately 600 nm. Using the formula Δ = hc/λ, where h is Planck's constant, c is the speed of light, and λ is the wavelength, the splitting energy is approximately 199 kJ/mol.

The Complex Ion [Co(OH2)6](3+)is Blue in an Aqueous Solution

The Complex Ion [Co(OH₂)₆](³⁺)is Blue in an Aqueous Solution