Stoichiometry Review

Front

What is stoichiometry?

Back

Stoichiometry is the calculation of quantities in chemical reactions based on the balanced chemical equations.

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 formed.

Front

What is an excess reactant?

Back

An excess reactant is a substance that is not completely consumed in a chemical reaction, remaining after the reaction has occurred.

Front

How do you determine the limiting reactant in a reaction?

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 formula for percent yield?

Back

The formula for percent yield is (Actual Yield / Theoretical Yield) × 100.

Front

How do you calculate the molar mass of a compound?

Back

To calculate the molar mass, sum the atomic masses of all the atoms in the compound's formula.

Front

What is the molar mass of NH4NO2?

Back

The molar mass of NH4NO2 is 64 g/mol.

Front

What role does stoichiometry play in chemical reactions?

Back

Stoichiometry allows chemists to predict the amounts of reactants and products involved in a chemical reaction.

Front

What is the significance of a balanced chemical equation in stoichiometry?

Back

A balanced chemical equation ensures that the law of conservation of mass is followed, allowing accurate stoichiometric calculations.

Front

What is the relationship between moles and grams in stoichiometry?

Back

Moles can be converted to grams using the molar mass of the substance, which relates the amount of substance to its mass.