hitung ph larutan 250 mllarutan, Naoh 0,001 mol

n NaOH = 10^-³ mol
V NaOH = 0,25 L

[OH] = n NaOH/V NaOH
[OH] = 0,001 / 0,25
[OH] = 0,004 = 4×10^-3
pOH = 3 - log4
pH = 14 - (3-log4)
pH = 11 + log4