Limiting Reactants

Front

What is a limiting reactant?

Back

The reactant that determines how much product can be made.

Front

In the reaction 2 Al + 3 Cl2 -> 2 AlCl3, if you have 2 moles of Al and 2 moles of Cl2, which is the limiting reactant?

Back

Cl2

Front

If you have 10 pieces of bread, 4 tablespoons of peanut butter, and 20 tablespoons of jelly, and you need 2 pieces of bread, 1 tablespoon of peanut butter, and 2 tablespoons of jelly to make a sandwich, what is the limiting reactant?

Back

Peanut butter

Front

In the reaction Fe + S -> FeS, if 7.62g of Fe reacts with 8.67g of S, which is the limiting reactant?

Back

Fe

Front

When 12 moles of O2 reacts with 1.1 mole of C10H8, what is the limiting reactant?

Back

Oxygen

Front

What is the excess reactant?

Back

The reactant that is not completely consumed in a chemical reaction.

Front

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

Back

By calculating the amount of product each reactant can produce and identifying the one that produces the least.

Front

In a reaction, if you have more of one reactant than needed, what is that reactant called?

Back

Excess reactant.

Front

What is the significance of identifying the limiting reactant in a chemical reaction?

Back

It helps predict the maximum amount of product that can be formed.

Front

If 4 moles of A react with 6 moles of B to produce C, and you have 3 moles of A and 5 moles of B, which is the limiting reactant?

Back

A