stoichiometry vocab

mole

unit of measurement for the amount of a substance

avogadro’s number

the number of particles in exactly one mole of a pure substance

molar mass

the mass of one mole of pure substance

conversion factor

ratio of equivalent values (meaning they equal one)

formula mass

the sum of the average atomic masses of a compound’s elements

percent composition

the percentage (based on mass) of each element in a compound

stoichiometry

“element" a way to describe quantities in chemical reactions

mole ratio

a ratio of substances in a chemical that can be used as a conversion factor

limiting reactant

the reactant that limits the amount of product that can be made

excess reactant

the reactant that isn’t completely used up in the reaction

actual yield

the measured amount of product actually made from a reaction

theoretical yield

the maximum amount of product that could be made from a given amount of reactant

percent yield

the ratio of what could have been produced to what actually was produced