Chapter 15, Problem 74QRT

(a)

Interpretation Introduction

Interpretation:

The chemical equation for formation of ${\left[{\text{CoCl}}_6\right]}^{3-}$ and its formation constant expression have to be stated.

Concept Introduction:

The equilibrium state of a chemical reaction is the state at which the rate of reaction going into the forward direction becomes equal to the rate of reaction going into the backward direction.  It is denoted as $K_{\text{eq}}$.  It is known as equilibrium constant of the reaction.

(b)

Interpretation Introduction

Interpretation:

The chemical equation for formation of ${\left[\text{Zn}{\left(\text{OH}\right)}_4\right]}^{2-}$ and its formation constant expression have to be stated.

Concept Introduction:

Refer to part (a).