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sebelum pengenceran
H = √Ka.[HA]
= √10⁻⁵.10⁻¹
= √10⁻⁶
= 10⁻³
pH = -log H
= - log 10⁻³
= 3
sesdah pengenceran V₂ = 1000mL
terjadi perubahan konsentrasi akibat pengenceran
M₁V₁ = M₂V₂
0,1.10 = M₂.1000
M₂ = 10⁻³
H = √Ka.[Ha]
=√10⁻⁵.10⁻³
= √10⁻⁸
= 10⁻⁴
pH = 4