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[H⁺] = √1,7 x 10⁻⁵ • 0,1
[H⁺] = √1,7 x 10⁻⁶
[H⁺] = 1,3 x 10⁻³
pH = -log [H⁺]
pH = -log [1,3 x 10⁻³]
pH = 3 - log 1,3
Jadi, harga pH nya adalah 3 - log 1,3
α = √ka/M
α = √1,7 x 10⁻⁵/0,1
α = √1,7 x 10⁻⁴
α = 1,3 x 10⁻²
α = 1,3%
Jadi, α dari larutan itu adalah 1,3%