The concentration of potassium hydroxide needed for the aqueous solution with pOH of 4.240 is 5.75 x 10^-5 Molar.
pOH is the measure of concentration of hydroxide ion in a given sample. It is used for measuring the alkalinity of a solution. pOH lower than 7 are said to be more alkaline and pOH equal to 7 are neutral.
Mathematically pOH can be explained as the negative logarithm of hydroxide ion concentration.
That is, -log [OH]
In the given question, the pOH of the given solution is 4.240.
Therefore, to find the molarity concentration of the solution we need,
pOH = 4.240
- log [OH] = 4.240
log [OH] = - 4.240
[OH] = 10^-4.240 = 5.75 x 10^-5
Therefore, the molarity concentration of the solution is 5.75 x 10^-5 molar.
Learn more about Molar concentration at,
brainly.com/question/21633487
#SPJ4
