Question

Express and Define the following terms
a)limiting reagent
b)excess reagent​

Answer 1

Explanation:Limiting reagent:

●Limiting reagent:-It is defined as a substance ,that completely get consumed when the chemical reaction is complete.

And the product formed ,is limited by this reagent ,and reaction is not possible without limiting reagent.

FOR EXAMPLE:-

C+O------>CO

1 mol +1mol------->1 mo

Exess reagent:

Chemical reaction equations give the ideal stoichiometric relationship among reactants and products. However, the reactants for a reaction in an experiment are not necessarily a stoichiometric mixture. In a chemical reaction, reactants that are not used up when the reaction is finished are called excess reagents

Answer 2

Explanation:

For a chemical reaction to proceed to completion , the reactants need to be in amounce as required by a balanced chemical equation. When it is not so one reactant is in access over the other.

The amount of the product formed then it depends upon the reactant which gets consumed.

This reactant which gets consumed , limits the amount of the product formed and is called the limiting reagent.