Chapter 4 Stoichiometry of Chemical Reactions
Chapter 4 Key Terms
amount of product formed in a reaction
chemical species of interest
chemical equation with equal numbers of atoms for each element in the reactant and product
device used for the precise delivery of variable liquid volumes, such as in a titration analysis
symbolic representation of a chemical reaction
number placed in front of symbols or formulas in a chemical equation to indicate their relative amount
gravimetric technique used to determine the elemental composition of a compound via the collection and weighing of its gaseous combustion products
chemical equation in which all dissolved ionic reactants and products, including spectator ions, are explicitly represented by formulas for their dissociated ions
measured volume of titrant solution that yields the change in sample solution appearance or other property expected for stoichiometric equivalence (see equivalence point)
volume of titrant solution required to react completely with the analyte in a titration analysis; provides a stoichiometric amount of titrant for the sample’s analyte according to the titration reaction
reactant present in an amount greater than required by the reaction stoichiometry
quantitative chemical analysis method involving the separation of an analyte from a sample by a physical or chemical process and subsequent mass measurements of the analyte, reaction product, and/or sample
substance added to the sample in a titration analysis to permit visual detection of the end point
reactant present in an amount lower than required by the reaction stoichiometry, thus limiting the amount of product generated
chemical equation in which all reactants and products are represented as neutral substances
chemical equation in which only those dissolved ionic reactants and products that undergo a chemical or physical change are represented (excludes spectator ions)
measure of the efficiency of a reaction, expressed as a percentage of the theoretical yield
substance formed by a chemical or physical change; shown on the right side of the arrow in a chemical equation
the determination of the amount or concentration of a substance in a sample
substance undergoing a chemical or physical change; shown on the left side of the arrow in a chemical equation
ion that does not undergo a chemical or physical change during a reaction, but its presence is required to maintain charge neutrality
ratio of coefficients in a balanced chemical equation, used in computations relating amounts of reactants and products
relationships between the amounts of reactants and products of a chemical reaction
amount of product that may be produced from a given amount of reactant(s) according to the reaction stoichiometry
solution containing a known concentration of substance that will react with the analyte in a titration analysis
quantitative chemical analysis method that involves measuring the volume of a reactant solution required to completely react with the analyte in a sample