Chapter 3, Problem 106AP

Interpretation Introduction

Interpretation:

The number of water molecules present in the given compound is to be calculated.

Concept introduction:

The chemical formula of a compound is a way of representing information about the chemical proportions of all the species that constitute that chemical compound or molecule. This is done by using numbers and the chemical symbols of the elements.

The number of moles of a compound can be calculated as

$m=\frac{wt}{MW}$

Here, m is number of moles of a compound, wt is the weight of compound, and MW is the molecular mass of the compound.

The mass of the compound can be calculated as

$\text{mass}\text{=}\text{moles}\text{×}\text{molecular}\text{mass}$