Limiting reactants

Front

What is a limiting reactant?

Back

The reactant that determines how much product can be made.

Front

If 2 moles of aluminum and 2 moles of chlorine are reacted, which is the limiting reactant?

Back

Cl2

Front

In a sandwich recipe, if you have 10 pieces of bread, 4 tablespoons of peanut butter, and 20 tablespoons of jelly, what is the limiting reactant?

Back

Peanut butter

Front

What is the molar mass of CO2?

Back

44 g/mol

Front

If 7.62g of Fe (II) reacts with 8.67g of S, what is the limiting reactant?

Back

Fe

Front

How do you determine the limiting reactant in a chemical reaction?

Back

By comparing the mole ratio of the reactants used in the reaction.

Front

What happens to the excess reactant in a chemical reaction?

Back

It remains unreacted after the reaction is complete.

Front

Why is it important to identify the limiting reactant in a reaction?

Back

It helps predict the amount of product formed.

Front

What is the mole ratio in the reaction of aluminum and chlorine to form aluminum chloride?

Back

2 moles of Al react with 3 moles of Cl2.

Front

If you have 5 moles of A and 3 moles of B, and A reacts with B in a 1:1 ratio, which is the limiting reactant?

Back

B, because there are fewer moles.