Chapter 9, Problem 14E

Interpretation Introduction

Interpretation:

In an unbalanced chemical reaction, ${\text{C}}_{\text{4}}{\text{H}}_{\text{10}}\left(g\right)+{\text{O}}_{\text{2}}\left(g\right)\stackrel{\Delta }{\to }{\text{CO}}_{\text{2}}\left(g\right)+{\text{H}}_{\text{2}}\text{O}\left(g\right)$, the number of moles of butane gas ${\text{C}}_{\text{4}}{\text{H}}_{\text{10}}$ and ${\text{O}}_{\text{2}}$ required to produce $2.50\text{mol}$ of water are to be calculated.

Concept introduction:

The quantity of a substance having same number of atoms, ions, or molecules as the number of atoms in $\text{12}\text{g}$ of $\text{carbon-12}$ is defined as a mole. The number of units forming the mole are $6.02214179\times {10}^{23}$. This is known as Avogadro’s number.

A balanced chemical equation involves equal number of atoms on both the sides of the equation, that is, the reactants and products. It follows the law of conservation of mass.