Limiting Reactants and Percent Yield

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

How do you identify the limiting reactant in a reaction?

Back

To identify the limiting reactant, calculate the moles of each reactant and determine which one produces the least amount of product based on the stoichiometry of the reaction.

Front

What is theoretical yield?

Back

Theoretical yield is the maximum amount of product that can be produced from a given amount of reactants, calculated using stoichiometry.

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 percent yield?

Back

Percent yield is a measure of the efficiency of a reaction, calculated as (actual yield / theoretical yield) x 100%.

Front

What is the mole ratio in a chemical reaction?

Back

The mole ratio is the ratio of the coefficients of reactants and products in a balanced chemical equation, used to convert between moles of different substances.

Front

How do you calculate percent yield?

Back

Percent yield = (actual yield / theoretical yield) x 100%.

Front

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

Back

The limiting reactant determines the maximum amount of product that can be formed and affects the overall yield of the reaction.

Front

In the reaction Mg + 2HCl → MgCl2 + H2, which reactant is the limiting reactant if 6.00 g HCl and 5.00 g Mg are used?

Back

HCl is the limiting reactant.

Front

In the reaction 4NH3 + 6NO → 5N2 + 6H2O, what is the limiting reactant if 10 moles of NH3 and 30 moles of NO are used?

Back

NH3 is the limiting reactant.