Stoichiometry quiz

Stoichiometry

The branch of chemistry that uses balanced chemical equations to calculate the amounts of reactants and products in a reaction

Mole ratio

A ratio between the amounts in moles of any two substances in a balanced chemical equation, used to convert between substances

Limiting reactant

The reactant that is completely used up first in a chemical reaction and limits the amount of product that can form

Excess reactant

The reactant that is not completely used up in a chemical reaction and remains after the reaction is complete

Theoretical yield

The maximum amount of product that can be produced from a given amount of reactants, calculated using stoichiometry

Actual yield

The amount of product actually obtained from a chemical reaction during an experiment

Percent yield

A measure of how efficient a reaction is, calculated by dividing the actual yield by the theoretical yield and multiplying by 100

Percent error

A measure of accuracy that compares an experimental value to the accepted or theoretical value, calculated by dividing the difference by the accepted value and multiplying by 100

Mole fraction

The ratio of the moles of one component in a mixture to the total number of moles of all components