Maharashtra BoardEnglish MediumSTD 12 ScienceChemistryIonic Equilibria2 Marks
Question
Define the following : (i) $pH$ (2) $pOH .(2$ marks)
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Answer
(1) $pH$ : The negative logarithm, to the base 10, of the molar concentration of hydrogen ions, $H ^{+}$is known as the $pH$ of a solution. $PH =-\log _{10}\left[ H ^{+}\right]$ (2) $pOH$ : The negative logarithm, to the base 10 , of the molar concentration of hydroxyl ions, $OH ^{-}$ is known as the $pOH$ of a solution. $pOH =-\log _{10}\left[ OH ^{-}\right]$
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