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words and defs to chapter 15

a highly purified solid compound used to check the concentration of a known solution in a titration. primary standard
the range in concentration over which a variation in a chemical indicator can be observed. transition interval
a solution of known concentration, expressed in terms of the amount of solute in a given amount of solvent or solution. standard solution
a value that is used to express the acidity or alkalinity of a system. PH
a process in which 2 water molecules produce a hydronium ion and a hydroxide ion by transfer of a proton. self ionization of water
the point at which the 2 solutions used in a titration are present in chemically equivalent amounts. equivalence point
a sub that changes in color depending on the ph of the solution that the sub is in. acid base indicator
a device used to determine the ph of a solution. ph meter
a method to determine the concentration of a sub in solution by adding a solution of known volume and concentration until the reaction is completed. titration
the point at which a marked color change takes place. end point
the negative of the common logarithm of the hydroxide ion concentration of a solution POH