The concentration of hydroxide ion of a solution whose pOH value is equal to 2.86 is 1.38×10⁻³ M.
How do we calculate the concentration of OH⁻?
Concentration of hydroxide ion will be calculated by using the pOH value by using the below equation as:
pOH = -log[OH⁻]
[OH⁻] = [tex]10^{-pOH}[/tex]
Given that value of pOH = 2.86
On putting values we get,
[OH⁻] = [tex]10^{-2.86}[/tex]
[OH⁻] = 0.00138 = 1.38×10⁻³ M
Hence concentration of hydroxide ion is 1.38×10⁻³ M.
To know more about pOH & [OH⁻], visit the below link:
https://brainly.com/question/26984550
