Chapter 6, Problem 6.25P

(a)

Interpretation Introduction

Interpretation:

The titration reaction has to be written.

(b)

Interpretation Introduction

Interpretation:

The mole (in $\text{mmol}$) of ${\text{BaCl}}_2$ which were required to reach the end point has to be calculated.

Concept Introduction:

Molarity: The concentration for solutions is expressed in terms of molarity as follows,

  $M=\frac{n}{V}$

Where,

M is molarity, n is number of moles, and V is volume of solution (in L).

(c)

Interpretation Introduction

Interpretation:

The mole (in $\text{mmol}$) of ${\text{SO}}_{\text{4}}^{\text{2-}}$ were contained in $\text{25}\text{mL}$ has to be calculated.

(d)

Interpretation Introduction

Interpretation:

The weight percent of ${\text{SO}}_{\text{4}}^{\text{2-}}$ in the soil has to be calculated.