The hydroxide of the solution can give the pOH of the solution used to determine the pH of the solution. The solution has a pH of 7.7 and is basic. Thus, option a is correct.
What is pH?
The hydrogen potential of the solution is given by the concentration of the hydrogen or the hydroxide concentration dissolved in the solution.
The pH or the pOH of the solution can be used to determine the acidic and basic nature of the solution based on the range in which it lies.
If the pH of the solution lies below 7 then they are said to be acidic, whereas above 7 are alkaline in nature.
Given,
[OH⁻] =5.6 x 10⁻⁷ M
First, pOH is calculated as,
pOH = -log [OH⁻]
pOH = - log (5.6 x 10⁻⁷ M)
pOH = 6.252
Now, pH from pOH is calculated as:
pH = 14 - pOH
pH = 14 - 6.252
pH = 7.748
Therefore, option a. the pH of the solution is 7.7 and is basic.
Learn more about pH here:
https://brainly.com/question/12920721
#SPJ5
