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tolong no 4.. makasihh
tolong no 4.. makasihh

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1 Jawaban

  • n NH3 = 100 . 0,2 = 20mmol
    n HCl = 100 . 0,2 = 20mmol
    NH3 + HCl --->>> NH4Cl
    M 20. 20. -
    R 20. 20. 20
    S -. -. 20
    [NH4Cl] = 20/200 = 0,1M
    H+ = akar Kw/Kb [G]
    = akar 10^-14/10^-5 [10^-1]
    = akar 10^-10
    = 10^-5 M
    pH = 5
    jawaban A

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