Chapter 21, Problem 39PS

Interpretation Introduction

Interpretation:

The mass of aluminium oxide and sulfuric acid used to produce $\text{1 kg}$ of aluminium sulfate is to be predicted.

Concept introduction:

Aluminium sulfate is produced by the reaction of aluminium oxide and sulfuric acid. The formula for aluminium sulphate is ${\text{Al}}_{\text{2}}{\left({\text{SO}}_{\text{4}}\right)}_{\text{3}}$. It is an important commercial aluminium compound. The molar mass of aluminium sulphate is $\text{342}\text{.15 g}$. The chemical reaction can be written as follows:

    ${\text{Al}}_{\text{2}}{\text{O}}_{\text{3}}\left(\text{s}\right){\text{+3H}}_{\text{2}}{\text{SO}}_{\text{4}}\left(\text{aq}\right)\to {\text{Al}}_{\text{2}}{\left({\text{SO}}_{\text{4}}\right)}_{\text{3}}\left(\text{s}\right)+{\text{3H}}_{\text{2}}\text{O}\left(\text{l}\right)$