Answer:
3.56
Explanation:
pH refers to a measure of hydrogen ion concentration. It measures acidity or alkalinity of a solution. It usually ranges from 0 to 14.
If pH of aqueous solutions at 25°C is less than 7 then they are acidic, while aqueous solutions with a pH greater than 7 are alkaline.
Concentration of hydroxide ions = [tex]3.6\times 10^{-11}[/tex]
pH = [tex]-log \left ( 3.6\times 10^{-11} \right )=10.44[/tex]
pOH = 14 - pH = 14 - 10.44 = 3.56
