Terdapat 500 mL CH3COONa 0,002 M.Tentukan pH larutan garam tersebut.(Ka CH3COONa = 2 x 10-5)
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Pertanyaan
Terdapat 500 mL CH3COONa 0,002 M.Tentukan pH larutan garam tersebut.(Ka CH3COONa = 2 x 10-5)
2 Jawaban
-
1. Jawaban Yuki0
pake rumus hidrolisis
pH = 8 -
2. Jawaban andhikahanif
[H⁺]
= √(2 x 10⁻³ x 2 x 10⁻⁵)
= √(4 x 10⁻⁸)
= 2 x 10⁻⁴
pH
= -log [H⁺]
= -log (2 x 10⁻⁴)
= 4 - log 2