8.022 is the value of pOH of the HNO₃ solution.
pOH of the HNO₃ solution can be calculated as:
pOH = -log [OH⁻], where
[OH⁻] = concentration of hydroxyl ion = 9. 50 × 10⁻⁹ M
Putting this value in the above equation, we get
pOH = -log ( 9. 50 × 10⁻⁹)
pOH = - (- 8.022) = 8.022
Hence, pOH of the HNO₃ solution is 8.022.
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