Chapter 15, Problem 15.110QE

(a)

Interpretation Introduction

Interpretation:

The Lewis acid or base in the following reaction has to be identified.

  ${\text{I}}_2\left(\text{s}\right){\text{+ I}}^{-}\left(\text{aq}\right)\to {\text{I}}_3^{-}\left(\text{aq}\right)$

Concept Introduction:

An acid serves to accepts an electron-pair from another electron-rich species while a base donates electrons to another electron-deficient species in the reaction in accordance with Lewis's definition. For instance of Lewis acids that have electron deficient central atom ${\text{BF}}_3$ and ${\text{SO}}_3$.

(b)

Interpretation Introduction

Interpretation:

The Lewis acid or base in the following reaction has to be identified.

  ${\text{SO}}_{\text{2}}\left(\text{g}\right)+{\mathrm{BF}}_3\left(\text{g}\right)\to {\text{O}}_{\text{2}}\text{S}{\mathrm{BF}}_3\left(\text{s}\right)$

Concept Introduction:

Refer to part (a).

(c)

Interpretation Introduction

Interpretation:

The Lewis acid or base in the following reaction has to be identified.

  ${\text{Au}}^{+}\left(\text{aq}\right)+2{\text{CN}}^{-}\left(\text{aq}\right)\rightleftharpoons {\left[\text{Au}{\left(\text{CN}\right)}_2\right]}^{-}\left(\text{aq}\right)$

Concept Introduction:

Refer to part (a).

(d)

Interpretation Introduction

Interpretation:

The Lewis acid or base in the following reaction has to be identified.

  ${\text{CO}}_{\text{2}}\left(\text{g}\right)+{\text{H}}_{\text{2}}\text{O}\left(\text{g}\right)\to {\text{H}}_{\text{2}}{\text{CO}}_3\left(\text{g}\right)$

Concept Introduction:

Refer to part (a).