Chapter 12.1, Problem 10LC

Interpretation Introduction

Interpretation: To determine the balanced chemical reaction.

Concept Introduction: The equation can be introduced as a balanced equation when it will possess an identical count of atoms in the reactant as well as the product side of the reaction.

Answer to Problem 10LC

The balanced chemical equation will be ${\text{C}}_{\text{2}}{\text{H}}_{\text{5}}\text{OH(l)}{\text{+3O}}_{\text{2}}\text{(g)}\to 2{\text{CO}}_{\text{2}}\left(\text{g}\right)\text{}{\text{+3H}}_{\text{2}}\text{O(g)}$ .

Explanation of Solution

The given chemical equation is ${\text{C}}_{\text{2}}{\text{H}}_{\text{5}}\text{OH(l)}{\text{+O}}_{\text{2}}\text{(g)}\to {\text{CO}}_{\text{2}}\left(\text{g}\right)\text{}{\text{+H}}_{\text{2}}\text{O(g)}$

The number of hydrogen on the reactant side = 6

The number of hydrogen on the product side = 2

The number of oxygen on the product side = 3

The number of oxygen in the reactant side = 3.

By multiplying with 3 as a stoichiometry coefficient of the water molecule, by 2 with carbon dioxide, and oxygen molecules. The equation will be balanced.

  ${\text{C}}_{\text{2}}{\text{H}}_{\text{5}}\text{OH(l)}{\text{+3O}}_{\text{2}}\text{(g)}\to 2{\text{CO}}_{\text{2}}\left(\text{g}\right)\text{}{\text{+3H}}_{\text{2}}\text{O(g)}$