6.2 pH value

6.2 pH value

pH
-hydogen potenz
-logarithmic measurement
towards the concentration
of hydrogen ions(unit:mol
dm-3)in the solution

pH=-log[h+] Concentration of hydroxide
ions, OH- is used to calculate
When pH valure is pOH value of an alkali , where
7, the [OH-]represents the
concentration of concentration of hydroxide ions
H+ ions are equal in the unit in the unit of mol
to the dm-3in an alkaline solution
concentration of
OH- ions pOH=-log[OH-]