Chapter 20, Problem 60E

Interpretation Introduction

Interpretation: The wavelength of each ion, that is $\text{Co}{\left({\text{NH}}_3\right)}_{\text{6}}{}^{3+},\text{Co}{\left(\text{CN}\right)}_{\text{6}}{}^{3-},{\text{CoF}}_{\text{6}}{}^{3-}$ is given in random order. The given complex ions are to be matched according to their wavelength of light absorbed.

Concept introduction: The capacity to absorb light by a complex ion is directly proportional to the crystal field splitting energy and energy absorbed is inversely proportional to the wavelength.

To determine: The correct match of each complex ion $\text{Co}{\left({\text{NH}}_3\right)}_{\text{6}}{}^{3+},\text{Co}{\left(\text{CN}\right)}_{\text{6}}{}^{3-},{\text{CoF}}_{\text{6}}{}^{3-}$ according to the wavelength of light absorbed.