Chapter 21, Problem 21.134MP

Interpretation Introduction

(a)

Interpretation:

The equilibrium concentration of free ${\text{Fe}}^{3+}$ in a 0.100M solution of ${{\text{[Fe(C}}_{\text{2}}{\text{O}}_{\text{4}}{\text{)}}_{\text{3}}\text{]}}^{3-}$ is to be determined. Where the formation constant of ${[{\text{Fe(C}}_{\text{2}}{\text{O}}_{\text{4}}{\text{)}}_{\text{3}}]}^{3-}$ is $3.3\times {10}^{20}$.

Concept introduction:

The following formula will be used −

$K_f=\frac{[product]}{[reactantA][reactantB]}$

Interpretation Introduction

(b)

Interpretation:

It is to be determined that the following reaction is non-spontaneous under standard state condition. The reaction is −

${{\text{[Fe(C}}_{\text{2}}{\text{O}}_{\text{4}}{\text{)}}_{\text{3}}]}^{3-}(aq)+6{\text{H}}_{\text{3}}{\text{O}}^{+}(aq)\rightleftharpoons {\text{Fe}}^{3+}(aq)+3{\text{H}}_{\text{2}}{\text{C}}_{\text{2}}{\text{O}}_{\text{4}}\text{(}aq)+6{\text{H}}_{\text{2}}\text{O(}l)$

Concept introduction:

The following formula will be used −

$K_f=\frac{[product]}{[reactantA][reactantB]}$

Interpretation Introduction

(c)

Interpretation:

The crystal field energy level diagram for ${[{\text{Fe(C}}_{\text{2}}{\text{O}}_{\text{4}}{\text{)}}_{\text{3}}]}^{3-}$ is to be drawn.

Concept introduction:

The energy level diagram is used for the representation of energy shell, sub shell and orbital which are occupied by the electrons of the atoms.

Interpretation Introduction

(d)

Interpretation:

The structure of ${[{\text{Fe(C}}_{\text{2}}{\text{O}}_{\text{4}}{\text{)}}_{\text{3}}]}^{3-}$ is to be drawn and determine that it is chiral or achiral.

Concept introduction:

Achiral molecules consist plane of symmetry and it has super imposable mirror image. Whereas, chiral molecules consist no plane of symmetry and also it has non-super imposable mirror image.