Chapter 5, Problem 97E

Interpretation Introduction

Interpretation:

The correct formula for each of the given compounds is to be listed and formula mass for the same is to be calculated.

Concept introduction:

The ionic compounds consist of anion and cation. In the ionic compounds, the sum of positive ions gets cancelled with sum of negative ions.

The average mass of the compound is the formula mass. Formula mass is calculated by the formula as:

$\begin{array}{c}\text{Formula mass}=\left(\begin{array}{l}\text{atoms of first element in the chemical formula }\times \\ \text{atomic mass of first element}\end{array}\right)\\ +\left(\begin{array}{l}\text{atoms of second element in the chemical formula }\times \\ \text{atomic mass of second element}\end{array}\right)\\ +\mathrm{........}\end{array}$