Biology / Bio 0161 · Atom · ~20 seconds
Buffers
Video not yet published
to the StudyWalks catalog
to the StudyWalks catalog
State
A buffer is a substance that resists a change in a solution's pH by absorbing or releasing hydrogen ions as conditions shift.
Show
A bicarbonate buffer in lake water absorbs excess hydrogen ions from runoff, keeping the water within a range fish can survive.
Watch for
A buffer moderates a pH change within a working range; it does not hold pH fixed against every addition.