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M(H₂SO₄)=0,02 M
Dit :
pH=...?
Peny :
H₂SO₄ ⇒ 2H⁺ + SO₄²⁻
[H⁺]=a Ma
=2 x 0,02
=0,04 M
pH=-log[H⁺]
=-log 4 x 10⁻²
=2-log4
∴ Larutan tersebut mempunyai pH sebesar 2-log4
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