Answer
(a) $pOH = 8.82$: Acidic solution.
(b) $pOH = 4.15$: Basic solution.
(c) $pOH = 7.00$: Neutral solution
(d) $pOH = 2.06$: Basic solution.
Work Step by Step
pOH < 7: Basic solution
pOH = 7: Neutral solution
pOH > 7: Acidic solution.
1. Calculate the pOH value:
$pOH = -log[OH^-]$
$pOH = -log(1.5 \times 10^{-9})$
pOH = 8.82
2. Calculate the pOH value:
$pOH = -log[OH^-]$
$pOH = -log(7 \times 10^{-5})$
pOH = 4.15
3. Calculate the pOH value:
$pOH = -log[OH^-]$
$pOH = -log(10 \times 10^{-8})$
pOH = 7
4. Calculate the pOH value:
$pOH = -log[OH^-]$
$pOH = -log(8.8 \times 10^{-3})$
pOH = 2.06
