Answer:
7
Explanation:
Assume we have 1 L of each solution.
Solution 1
Solution 2
pH = 12
pOH = 14.00 - pOH = 14.00 - 12 = 2.0
3. pH after mixing
H⁺ + OH⁻ ⟶ H₂O
I/mol: 10⁻² 10⁻²
C/mol: -10⁻² -10⁻²
E/mol: 0 0
The H⁺ and OH⁻ have neutralized each other. The pH will be that of pure water.
pH = 7