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Dr. H chem quantity

Dr. Heiny: (Standard 03) Chemical Quantities

QuestionAnswer
mole the International System (SI) base unit for measuring an amount of matter
Avogadro's number the number of particles in a mole of particles (molecules, atoms, etc); 6.022 x 10^23 particles = 1 mole of particles
atomic mass unit (u) also known as the dalton (Da), a unit of mass defined as 1/12 the mass of the carbon-12 isotope
empirical formula the formula that shows the smallest whole-number ratio of the elements in a compound, not necessarily the exact molecular formula
mole ratio the relation between two substances in a chemical reaction written as a stoichiometric conversion factor
limiting reactant a substance in a reaction that is completely consumed by the reaction, therefore, the amount of the products that can be formed
Created by: LPH
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