Chapter 17, Problem 17.87QP

Interpretation Introduction

Interpretation:

A method used to differentiate ${\text{AgNO}}_{\text{3}}{}_{\text{(s)}}{\text{ and Cu(NO}}_{\text{3}}{\text{)}}_{\text{2}}{}_{\text{(s)}}$ has to be explained.

Concept introduction:

• Group I analysis: To the indefinite solution dilute $\text{HCl}$ is added, ${\text{Ag}}^{\text{+}}{\text{, Hg}}_{\text{2}}{}^{\text{2+}}{\text{, and Pb}}^{\text{2+}}$ precipitate as insoluble ions.  The other chloride ions which are soluble remains in solution.
• A platinum wire is immersed in unknown solution and held over flame.  Green colour shows the presence of copper ions.  This is called flame test.