Explanation:
It is known that relation between pOH and hydroxide ion concentration is as follows.
pOH = [tex]-log[OH^{-}][/tex]
As it is given that [tex][OH^{-}] = 9.50 \times 10^{-9} M[/tex]. Hence, putting the given values into the above formula as follows.
pOH = [tex]-log[OH^{-}][/tex]
= [tex]-log (9.50 \times 10^{-9})[/tex]
= 8.02
Thus, we can conclude that pOH of the given solution is 8.02.
The pOH of a solution of HNO₃ that has [OH– ] = 9.50 × 10⁻⁹ M is 8.02.
The concentration of the hydroxide ion (OH-) in a solution is measured by pOH.
It can be used to determine the alkalinity of a substance or, in some situations, its electrical conductivity.
pOH is the numerical expression of the hydroxyl ions content, as expressed by the formula: pOH = 14 – pH.
The OH of a solution is 9.50 × 10⁻⁹ M
Putting the value in the equation of pOH
[tex]\rm pOH = -[log\;OH^-] \\\\pOH = -[log\;9.50 \times 10^-^9 M] = 8.02[/tex]
Thus, the correct pOH of a solution is 8.02.
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