Chapter 8.6, Problem 8.25P

Interpretation Introduction

(a)

Interpretation:

The number of moles of $\text{NaCl}$ present in $2\text{ L}$ of a $2\text{ M}$ solution is to be determined.

Concept introduction:

The formula to calculate number of moles from molarity is given as follows:

  $\text{number of moles}=\left(\text{Molarity}\left(\text{mol/L}\right)\right)\left(\text{Volume}\left(\text{L}\right)\right)$

Interpretation Introduction

(b)

Interpretation:

The number of moles of $\text{NaCl}$ present in $2.5\text{ L}$ of a $\text{0}\text{.25 M}$ solution is to be determined.

Concept introduction:

The formula to calculate number of moles from molarity is given as follows:

  $\text{number of moles}=\left(\text{Molarity}\left(\text{mol/L}\right)\right)\left(\text{Volume}\left(\text{L}\right)\right)$

Interpretation Introduction

(c)

Interpretation:

The number of moles of $\text{NaCl}$ present in $25\text{}\text{ mL}$ of a $\text{2 M}$ solution is to be determined.

Concept introduction:

The formula to calculate number of moles from molarity is given as follows:

  $\text{number of moles}=\left(\text{Molarity}\left(\text{mol/L}\right)\right)\left(\text{Volume}\left(\text{L}\right)\right)$

Interpretation Introduction

(d)

Interpretation:

The number of moles of $\text{NaCl}$ present in $250\text{}\text{ mL}$ of a $\text{0}\text{.25 M}$ solution is to be determined.

Concept introduction:

The formula to calculate number of moles from molarity is given as follows:

  $\text{number of moles}=\left(\text{Molarity}\left(\text{mol/L}\right)\right)\left(\text{Volume}\left(\text{L}\right)\right)$