Biology / Bio 0155 · Atom · ~20 seconds
The pH Scale
Video not yet published
to the StudyWalks catalog
to the StudyWalks catalog
State
The pH scale measures how acidic or basic a solution is, based on hydrogen ion concentration, running 0 to 14 with 7 neutral.
Show
Pure water sits at pH 7; a solution with more free hydrogen ions than pure water reads below 7.
Watch for
Each whole step on the pH scale represents a tenfold change in hydrogen ion concentration, not a fixed, even step.