Chapter 4, Problem 4.38P

Interpretation Introduction

Interpretation:

The reason for the precipitation of some ions and others not is to be determined.

Concept introduction:

Precipitation reaction involves the reaction of two soluble ionic compounds to form an insoluble product. The insoluble product is known as a precipitate.

The reason for the precipitation reaction to occur is the formation of a product that is insoluble in nature. For example, the reaction of silver nitrate and sodium chromate is a precipitation reaction.

$2{\text{Ag}}^{+}\left(aq\right)+2{\text{NO}}_3^{-}\left(aq\right)+2{\text{Na}}^{+}\left(aq\right)+{\text{CrO}}_4^{2-}\left(aq\right)\to {\text{Ag}}_2{\text{CrO}}_4\left(s\right)+2{\text{Na}}^{+}\left(aq\right)+2{\text{NO}}_3^{-}\left(aq\right)$