Chapter 21, Problem 39QP

Interpretation Introduction

Interpretation:

The number of tons of ${\text{SO}}_{\text{2}}$ produced by roasting it to extract zinc metal is to be determined number of tons of ${\text{SO}}_{\text{2}}$.

Concept introduction:

Chemical reaction is a reaction in which one or more chemical substance changes into another chemical substance with the help of rearrangement of atoms.

Theoretical yield is simply the amount of the product to be obtained under ideal condition.

The theoretical yield of the substance is represented as:

$\text{Theoretical yield}=\frac{\text{Moles of limiting reagent}}{\text{Molecular weight of product formed}}$

The amount of ${\text{SO}}_{\text{2}}$ is calculated as:

$\text{m=theoretical}\text{yield}\text{×}\frac{\text{1}\text{ton}\text{mol}\text{ZnS}}{\text{mass}\text{}\text{of}\text{}\text{ZnS(ton)}}\text{×}\frac{\text{1}\text{ton}\text{mol}{\text{SO}}_{\text{2}}}{\text{1}\text{ton}\text{mol}\text{ZnS}}\text{×}\frac{\text{mass}\text{}\text{of}{\text{SO}}_{\text{2}}\text{(ton)}}{\text{1}\text{ton}\text{mol}{\text{SO}}_{\text{2}}}$