Chapter 10, Problem 117RQ

Interpretation Introduction

Interpretation:

The percentage of the carbon and hydrogen present in the new anti-malarial drug is to be determined. Also, the empirical and molecular formula for this drug is to be determined.

Concept Introduction:

Dalton law states that each of the gas exerts its own pressure called partial pressure of that gas and if there are a mixture of different gases in a container then the total pressure of the mixture of the gases can be estimated by the addition of the partial pressure value of each of the gases that are present in that respective mixture.

Conversion of the given temperature values from Celsius to Kelvin is done by using the relationship:

$\text{K}=273.15{+}^{\circ }\text{C}$.

The conversion of pressure from $\text{mm Hg}$ to $\text{torr}$ is done by using the respective conversion factor:

$\begin{array}{l}\text{1 mm Hg}=1\text{ torr}\\ \frac{1\text{ torr}}{\text{1 mm Hg}}\end{array}$.

The conversion of the volume unit form milliliter to liter is done by using the conversion factor:

$\begin{array}{l}1000\text{ mL}=1\text{ L}\\ \frac{1\text{ L}}{1000\text{ mL}}\end{array}$

The ideal gas equation is as follows:

$PV=n\text{R}T$

Here, $P$ is the pressure of the gas, $V$ is the volume of the gas, $n$ is the number of moles of the gas, $T$ is the temperature of the gas and $\text{R}$ is the universal gas constant.

The conversion of the milligram to gram takes place with the help of the conversion factor:

$\begin{array}{l}1000\text{ mg}=1\text{ g}\\ \frac{\text{1 g}}{1000\text{ mg}}\end{array}$