Chapter 2, Problem 2.71E

Interpretation Introduction

Interpretation:

The number of moles of sulfur atoms present in $1.5\text{mol}$ of ${\text{CS}}_{\text{2}}$ molecules is to be calculated. The number of ${\text{CS}}_{\text{2}}$ molecules that are required to contain $0.25\text{mol}$ of sulfur atoms is to be calculated.

Concept introduction:

The number of particles present in one mole of a substance is $6.023\times {10}^{23}$ particle. The number of moles of a substance is given as,

$n=\frac{N}{N_{\text{A}}}$

Where,

• $N$ represents the number of particles of the substance.

• $N_{\text{A}}$ represents the Avogadro’s number with a value $6.023\times {10}^{23}\text{particles}/\text{mole}$.