Chapter 3, Problem 82E

Interpretation Introduction

Interpretation: The total number of molecules (reactants plus products) present if ten molecules of oxygen and ammonia were initially present in the container is to be calculated.

Concept introduction: The total number of molecules exists in a reaction is the summation of the total molecules present on the products side and unreacted molecules on the reactants side.

The formula to calculate the total number of molecules in a reaction is as follows.

  $\text{Total molecules}=\text{Product molecules}+\text{Unreacted molecules}$