Stoichiometry Review

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 a balanced chemical equation?

Back

A balanced chemical equation has equal numbers of each type of atom on both sides of the equation, reflecting the law of conservation of mass.

Front

What is the mole ratio?

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

What is the 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 the excess reactant?

Back

The excess reactant is the substance that remains after a chemical reaction has gone to completion, as it was not completely used up.

Front

How do you calculate percent yield?

Back

Percent yield is calculated using the formula: (actual yield / theoretical yield) x 100%.

Front

What is theoretical yield?

Back

Theoretical yield is the maximum amount of product that can be produced from a given amount of reactants, based on stoichiometric calculations.

Front

What is actual yield?

Back

Actual yield is the measured amount of product obtained from a chemical reaction.

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

What does it mean to 'balance' a chemical equation?

Back

Balancing a chemical equation means adjusting the coefficients to ensure that the number of atoms for each element is the same on both sides of the equation.