chem 134 test 3 summer 2 exam
questions and answers
what is the common-ion effect -
correct answer ✅whenever a weak electrolyte and a strong
electrolyte containing a common ion are together in solution, the
weak electrolyte ionizes less than it would if it were alone in the
solution
what is a buffered solution -
correct answer ✅solutions that contain a weak conjugate acid-
base pair, that resist drastic changes in pH when small amounts of
strong acid or strong base are added to them
what is the buffer capacity -
correct answer ✅the amount of acid or base the buffer can
neutralize before the pH begins to change to an appreciable degree
what is the pH range of a buffer -
correct answer ✅the range over which the buffer acts effectively
what is a pH titration curve -
correct answer ✅a graph of the pH as a function of the volume of
titrant added
questions and answers
what is the common-ion effect -
correct answer ✅whenever a weak electrolyte and a strong
electrolyte containing a common ion are together in solution, the
weak electrolyte ionizes less than it would if it were alone in the
solution
what is a buffered solution -
correct answer ✅solutions that contain a weak conjugate acid-
base pair, that resist drastic changes in pH when small amounts of
strong acid or strong base are added to them
what is the buffer capacity -
correct answer ✅the amount of acid or base the buffer can
neutralize before the pH begins to change to an appreciable degree
what is the pH range of a buffer -
correct answer ✅the range over which the buffer acts effectively
what is a pH titration curve -
correct answer ✅a graph of the pH as a function of the volume of
titrant added
