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Stoichiometry
Term | Definition |
---|---|
theoretical yield | the maximum amount of a given product that can be formed when the limiting reactant is completely consumed. |
molar mass | the mass in grams of one more of molecules or formula units of a substance; also called molecular weight |
mass percent | the percent by mass of a component of a mixture or of a given element in a compound |
chemical equation | a representation of a chemical reaction showing the relative numbers of reactant and product molecules |
balancing a chemical equation | making sure that all atoms present in the reactants are accounted for among the products |
reactants | a starting substance in a chemical reaction. It appears to the left of the arrow in a chemical equation |
mole ratio | the ratio of moles of one substance to moles of another substance in a balanced chemical equation |
empirical formula | the simplest whole-number ratio of atoms in a compound |
mole | the number equal to the number of carbon atoms in exactly 12 g of pure C-12: Avogadro's number. One more represents 6.022e23 units |
chemical stoicihometry | the calculation of the quantities of material consumed and produced in chemical reactions |
molecular formula | the exact formula of a molecule, giving the types of atoms and the number of each type. |
limiting reactant | the reactant that is completely consumed when a reaction is run to completion |
average atomic mass | the weighted average mass of the atoms in a naturally occurring element; also known as the atomic weight |
percent yield | the actual yield of a product as a percentage of the theoretical yield (actual yield*100%/theoretical yield) |
products | a substance resulting from a chemical equation. it is shown to the right of the arrow in a chemical equation |