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13 Cards in this Set

  • Front
  • Back
acid-base buffer
a solution that resists changes in pH when a small amount of either strong acid or base is added
common-ion effect
the shift in the position of an ionic equilibrium away from formation of an ion that is caused by the addition (or presence) of that ion
Henderson-Hasselbalch equation
an equation for calculating the pH of a buffer system
buffer capacity
a measure of the ability of a buffer to resist a change in pH
buffer range
the pH range over which a buffer acts effectively
acid-base titration curve
a plot of the pH of a solution of acid (or base) versus the volume of base (or acid) added to the solution
equivalence point
the point in a titration when the number of moles of the added species is stoichiometrically equivalent to the moles of the other species
end point
the point in a titration at which the indicatior changes color
solubility-product constant
an equilibrium constant for the dissolving of a slightly soluble ionic compound in water
molar solubility
the solubility expressed in terms of amount (mol) of dissolved solute per liter of solution
complex ion
an ion consisting of a central metal ion bonded covalently to molecules and/or anions called ligands
a molecule or anion bonded to a central metal ion in a complex ion
formation constant
an equilibrium constant for the formation of a complex ion from the hydrated metal ion and ligands