Chapter 11, Problem 111CP

(a)

Interpretation Introduction

Interpretation: The pressure of the dry hydrogen gas needs to be determined.

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.

(b)

Interpretation Introduction

Interpretation: The number of moles of hydrogen gas produced needs to be determined.

Concept Introduction: 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.

(c)

Interpretation Introduction

Interpretation: The mass of Al reacted needs to be determined in grams.

Concept Introduction: The mass of a substance, $\text{m}$ can be calculated from number of moles and molar mass as follows:

  $\text{m = n×M}$

Here, $\text{n}$ is number of moles and $\text{M}$ is molar mass.