Chapter 3, Problem 110QRT

Interpretation Introduction

Interpretation:

The balanced chemical equation for the combustion of malonic acid, containing $\text{34}\text{.62\% C, 3}\text{.88\% H}$, and the remains $\text{O}$, by mass has to be written.

Concept introduction:

Balancing reaction:

Balanced reaction is a chemical reaction in which number of atoms for each element in the reaction and the total charge are same on both reactant side and the product side.

Steps in balancing the information

• Step 1: Write the unbalanced equation
• Step 2: Find the coefficient to balance the equation.
• The coefficient should be reduced to the smallest whole number.

Combustion reaction:

Combustion is an exothermic reaction between a fuel (the reductant) and an oxidant. Oxidant is usually atmospheric oxygen.

Generally organic molecule undergoes combustion reaction which produces carbon dioxide and water molecule.

  ${\text{Hydrocarbons + O}}_{\text{2}}\text{(g) }\to {\text{ CO}}_{\text{2}}{\text{(g) + H}}_{\text{2}}\text{O(g)}$

Number of moles can be calculated by using following formula,

  $\text{No}\text{.of Moles = }\frac{\text{Mass}}{\text{Molar}\text{mass}}$