Chapter F, Problem G.12E

(a)

Interpretation Introduction

Interpretation:

Volume of solution that contains $\text{5}\text{.124}\text{mmol}$ of ${\text{Na}}_{\text{2}}{\text{CO}}_{\text{3}}$ has to be calculated.

Concept Introduction:

Molarity of the solution is defined as the number of moles of solute that is dissolved in the volume of solution in liters.  Unit of molarity is $\text{mol}\cdot {\text{L}}^{-1}$.  The equation for molarity is given as follows;

    $\text{Molarity (M)}=\frac{\text{Amount of solute in moles}}{\text{Volume of solution in liters}}$

The volume of the solution can be calculated if the concentration and amount of solute is known.

(b)

Interpretation Introduction

Interpretation:

Volume of solution that has to be dispensed to obtain $\text{8}\text{.726}\text{mmol}$ of ${\text{Na}}^{\text{+}}$ has to be calculated.

Concept Introduction:

Refer part (a).