Chapter 4, Problem 4.149CP

Interpretation Introduction

Interpretation:

Mass percentage of each salt from a mixture of $\text{NaCl}$ and ${\text{FeCl}}_{\text{2}}$ should be determined.

Concept introduction:

• Water soluble chloride salts when treated with ${\text{AgNO}}_{\text{3}}$ solution precipitate of $\text{AgCl}$is obtained.
• Mole of $\text{AgCl}$ obtained is equal to moles of ${\text{Cl}}^{\text{-}}$ present in the salt mixture.
• Amount of ${\text{FeCl}}_{\text{2}}$ has a relation with amount of ${\text{MnO}}_{\text{4}}{}^{\text{-}}$required for titration of the salt mixture.$\text{NaCl}$will not in the redox titration reaction

Given:

Amount of $\text{AgCl}$ precipitate obtained in g and required mmol of ${\text{MnO}}_{\text{4}}{}^{\text{-}}$ for titrating the salt mixture.