Chapter 22, Problem 22.94AP

Interpretation Introduction

Interpretation: The aqueous solutions of copper(II) $-$ ammonia complexes is given to be of dark blue color. The direction (towards shorter or longer wavelength) towards which the series of complexes $\text{Cu}{\left({\text{H}}_2\text{O}\right)}_{\left(6-x\right)}{\left({\text{NH}}_{\text{3}}\right)}_x{}^{+}$ shifts as the value of $x$ increases from $0$ to $6$ is to be stated.

Concept introduction: The field strength of a ligand is inversely proportional to wavelength.

To determine: If the color of the series of complexes $\text{Cu}{\left({\text{H}}_2\text{O}\right)}_{\left(6-x\right)}{\left({\text{NH}}_{\text{3}}\right)}_x{}^{+}$ shift toward shorter or longer wavelength as the value of $x$ increases from $0$ to $6$.