Chapter 9.5, Problem 9.29QAP

Interpretation Introduction

Interpretation:

To determine the mass of Al₂O₃produced from 50.0 g of aluminum if the reaction yield is 75.0%.

  $\text{4Al}\text{(s)}\text{+}{\text{3O}}_{\text{2}}\text{(g)}\stackrel{}{\to }{\text{2Al}}_{\text{2}}{\text{O}}_{\text{3}}\text{(s)}$

Concept Introduction:

A stoichiometric coefficient of a well-balanced chemical equation tells about the relative relation between moles of reactants used and moles of products formed.

Lets say we have a chemical reaction as:

  $\text{aA}\text{+bB}\to \text{cC}\text{+}\text{dD}$

If above reaction is well-balanced then,

a moles of A reacts with b moles of B to produce c moles of C and d moles of D.

Limiting reactant: It is reactant in a chemical reaction which limits the amount of products formed.

After complete utilization of limiting reactant, no more products are formed.