Answer: Thus hydroxide ion concentration is [tex]10^{-11}M[/tex]
Explanation:
pH or pOH is the measure of acidity or alkalinity of a solution.
pH is calculated by taking negative logarithm of hydrogen ion concentration and pOH is calculated by taking negative logarithm of hydroxide ion concentration.
[tex]pH=-\log [H^+][/tex]
[tex]pOH=-log{OH^-}[/tex]
[tex]pH+pOH=14[/tex]
Given: pH=3
[tex]3+pOH=14[/tex]
[tex]pOH=11[/tex]
[tex]11=-log[OH^-][/tex]
[tex][OH^-]=10^{-11}[/tex]
Thus hydroxide ion concentration is [tex]10^{-11}M[/tex]