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Pertanyaan

Harga pH larutan garam CH3COONa 0,04 M jika diketahui Ka CH3COOH = 10^-5

1 Jawaban

  • M = 4x10^-2
    Ka = 10^-5

    OH^- = √Ka.M
    = √10^-5. 4.10^-2
    = 2x10^-3,5
    pOH = -log OH^-
    pOH = -log 2x10^-3,5
    pOH = -3,5 - log 2

    pH = 14 - pOH

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