Chapter 13, Problem 60AE

(a)

Interpretation Introduction

Interpretation:

Among ${\text{H}}_{\text{2}}$ or ${\text{O}}_{\text{2}}$ gas that remains unreacted has to be determined.

Concept Introduction:

The quantity of species that gives relation between reactants and products is determined by the stoichiometry of a reaction. Consider the general reaction,

  $\text{2A}+\text{B}\to 3\text{C}$

In the above reaction, two moles of $\text{A}$ reacts with one mole of $\text{B}$ to form three moles of $\text{C}$. Therefore, stoichiometric ratio of A and B is $2:2$, of A and C is $2:3$ and of B and C is $1:3$.

(b)

Interpretation Introduction

Interpretation:

Volume of gas that remains unreacted has to be determined.

Concept Introduction:

Refer to part (a).