Chapter 3, Problem 128AP

Interpretation Introduction

Interpretation:

The simplest formula of the compound and the balanced chemical equation are to be determined with given mass of metal and metal oxide.

Concept introduction:

The empirical formula helps to find the ratio of each element present in a compound regardless of the actual numbers. Empirical formula can be calculated by mass composition of the elements in a compound.

The molecular formula gives the number of atoms of each element in a compound.

The number of moles of the compound can be calculated from the equation:

$n=\frac{m}{M}$

Here, $n_{\text{X}}$ is the number of moles, $m$ is the given mass, and $M$ is the molar mass.