Chapter 4, Problem 92E

Interpretation Introduction

Interpretation:

The given question stated that a solution may contains the following ions: ${\text{Hg}}_2{}^{2+}$ , ${\text{Ba}}^{2+}$ , and ${\text{Fe}}^{2+}$ . Addition of potassium chloride in the solution can form precipitates. After filtering the precipitates potassium sulfate is added to the remaining solution and no precipitate forms. But when potassium carbonate is added to the remaining solution, a precipitate is formed. The ions present in the original solution and net ionic equation for the formation of each of the precipitates observed is to be stated.

Concept introduction: Ionic equation is the balanced molecular equation in which the strong electrolytes are broken down to form their ions that are dissolved in an aqueous solution. All ionic compounds are not water soluble. The insoluble ionic compounds form precipitates in the solution.

To determine: The ions present in the original solution and net ionic equation for the formation of each of the precipitates.