Chapter 11, Problem 122CP

Interpretation Introduction

Interpretation: The mass of $\text{He}$ in grams should be calculated when $\text{He}$ is injected into the abdomen produces a pressure of $\text{15}\text{.0 mmHg}$ at a volume of $\text{3}\text{.1 L}$ at ${\text{28 }}^{\text{o}}\text{C}$ .

Concept Introduction: The ideal gas equation is combination of different gas laws such as Boyle’s law, Charles’s law, Gay-Lussac law etc. The combination of all these laws gives the ideal gas equation. The expression relating the pressure, P, volume, V with number of moles, n and temperature, T of an ideal gas is:

  $\text{PV = nRT}$

Where R is Universal gas constant.

Number of moles is defined as the ratio of given mass to the molar mass. The mathematical expression is given by:

  $\text{Number of moles =}\frac{\text{Given mass}}{\text{Molar mass}}$