Chapter 15 Flashcards
Two water molecules producing a hydronium ion and a hydroxide ion by transfer of a proton
Self-ionization of Water
The negative of the common logarithm of the hydronium ion concentration H3O+
pH
The negative of the common logarithm of the hydroxide ion concentration OH-
pOH
Compounds whose colors are sensitive to pH
Acid-base indicators
The pH range over which an indicator changes color
Transition interval
Determines the pH of a solution by measuring the voltage between the two electrodes that are placed in the solution
pH meter
The controlled addition and measurement of the amount of a solution of known concentration required to react completely with a measured amount of a solution of unknown concentration
Titration
The point at which the two solutions used in a titration are present in chemically equivalent amounts
Equivalence point
The point in a titration at which an indicator changes color
End point
The solution that contains the precisely known concentration of a solute
Standard solution
A highly purified solid compound used to check the concentration of the known solution in a titration
Primary standard
