At 580 nm, the wavelength of its maximum absorption, the complex Fe(SCN)2+ has a molar absorptivity of 7.00 X 103 L mol-1 cm-1. Calculate (a) the absorbance of a 2.50 X 10-5 M solution of the complex at 580 nm in a 1.00-cm cell. (b) the absorbance of the solution in which the concentration of the complex is twice that in part (a) (c) the transmittance of the solutions described in parts (a) and (b) (d) the absorbance of a solution that has half the transmittance of that described in part (a)   answer letter d please

In the following list, identify a transition metal cation that cannot be used to distinguish between strong-field and weak-field ligands in octahedral complexes?           (A) Cr3+          (B) Fe3+          (C) Co3+          (D) None of them (any of them can be used)

Mn(acac)3 was found to have its ground state to 1st excited state absorption at 500 nm (Δo). The pairing energy for this complex is 28,000 cm-1 . Based on this information, draw the populated ground state d orbital diagram for this complex.

6. a) Discuss the relationship between the octahedral splitting energy, (Aoct), for complex ions and the ligand strength of the ligands in the complex ion. b) Considering only the complexes, Ni(en)3²+ (aq), Ni(NH3)²+(aq), and Ni(H₂O)62+ (aq), determine the relative ligand strengths of ammonia, ethylenediamine and water. Place the ligands in increasing order of ligand strength. (weakest ligand to the strongest ligand.) c) Discuss how you arrived at your conclusion in part b. Include in your discussion your data and/or your calculated values for these complex ions to support your conclusion.

Describe the conditions that favor the formation of complexes with a low number of coordinates