Chapter 17, Problem 17.81SP

Interpretation Introduction

(a)

Interpretation:

The millimoles of ${\text{HNO}}_{\text{3}}$ present at the start of the titration needs to be determined.

Concept introduction:

Millimoles Per Liter (mmol/L): A mole is an amount of a substance that contains a large number ( $6.022\times {10}^{23}$ ) of molecules or atoms. A millimole is one thousand of the moles.

Interpretation Introduction

(b)

Interpretation:

The milliliters of $\text{NaOH}$ required to reach the equivalence point needs to be determined.

Concept introduction:

Millimoles Per Liter (mmol/L): A mole is an amount of a substance that contains a large number ( $6.022\times {10}^{23}$ ) of molecules or atoms. A millimole is one thousand of the moles.

Interpretation Introduction

(c)

Interpretation:

The value of pH at equivalence point needs to be determined.

Concept introduction:

In solution, the $\text{pH}$ is the negative logarithm of hydronium ion $\left({\text{H}}_{\text{3}}{\text{O}}^{\text{+}}\right)$ concentration. Therefore,

$\text{pH}=-\log \left[{\text{H}}_{\text{3}}{\text{O}}^{\text{+}}\right]$

Here, $\left[{\text{H}}_{\text{3}}{\text{O}}^{\text{+}}\right]$ is the concentration of hydronium ion in the solution.

Interpretation Introduction

(c)

Interpretation:

The value of pH at equivalence point needs to be determined.

Concept introduction:

In solution, the $\text{pH}$ is the negative logarithm of hydronium ion $\left({\text{H}}_{\text{3}}{\text{O}}^{\text{+}}\right)$ concentration. Therefore,

$\text{pH}=-\log \left[{\text{H}}_{\text{3}}{\text{O}}^{\text{+}}\right]$

Here, $\left[{\text{H}}_{\text{3}}{\text{O}}^{\text{+}}\right]$ is the concentration of hydronium ion in the solution.