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

Multiple Choice

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