Stoichiometry

Front

What is stoichiometry?

Back

Stoichiometry is the branch of chemistry that deals with the calculation of reactants and products in chemical reactions based on the conservation of mass.

Front

What is theoretical yield?

Back

Theoretical yield is the maximum amount of product that could be obtained from a chemical reaction, calculated based on the balanced equation.

Front

What is actual yield?

Back

Actual yield is the amount of product that is actually obtained from a chemical reaction, which may be less than the theoretical yield due to various factors.

Front

What is a limiting reactant?

Back

The limiting reactant is the substance that is completely consumed in a chemical reaction, limiting the amount of product that can be formed.

Front

What is a mole ratio?

Back

A mole ratio is the ratio of moles of one substance to the moles of another substance in a balanced chemical equation.

Front

What is the first step in solving a stoichiometry problem?

Back

The first step is to write a balanced chemical equation for the reaction.

Front

How do you determine the limiting reactant?

Back

To determine the limiting reactant, compare the mole ratio of the reactants used in the reaction to the mole ratio in the balanced equation.

Front

What is the significance of a balanced equation in stoichiometry?

Back

A balanced equation ensures that the law of conservation of mass is followed, allowing for accurate calculations of reactants and products.

Front

If 2 moles of aluminum react with 3 moles of chlorine, how many moles of aluminum chloride are produced?

Back

2 moles of aluminum will produce 2 moles of aluminum chloride according to the equation 2 Al + 3 Cl2 -> 2 AlCl3.

Front

What happens when one reactant is in excess?

Back

When one reactant is in excess, it means that there is more of that reactant than needed to completely react with the limiting reactant.