Chapter ST, Problem 23PQ

Interpretation Introduction

Interpretation:

Volume of $0.131{\text{ M BaCl}}_2$ that is required to react completely with $42\text{ mL}$ of $0.453{\text{ M Na}}_{\text{2}}{\text{SO}}_{\text{4}}$ has to be determined.

Concept Introduction:

Molarity equation is used if solution of high molarity is provided and its dilute solution is to be formed by addition of extra solvent.

The expression for molarity equation is as follows:

  ${\text{M}}_{\text{1}}{\text{V}}_{\text{1}}={\text{M}}_{\text{2}}{\text{V}}_{\text{2}}$        (1)

Here,

  ${\text{M}}_{\text{1}}$ is molarity of initial solution.

  ${\text{V}}_{\text{1}}$ is volume of initial solution.

  ${\text{M}}_{\text{2}}$ is molarity of final solution.

  ${\text{V}}_{\text{2}}$ is volume of final solution.