Define the following : (i) pH (2) pOH .(2 marks) - Vidyadip

Question

Define the following :
(i) $pH$ (2) $pOH .(2$ marks)

✓

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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