Jawabanmu

2014-06-05T22:30:18+07:00
PH NH3=11 ->pOH= 3
[OH-]=10⁻³
√(Kb*M)=10⁻³
Kb*0,1=10⁻⁶
Kb=10⁻⁵
NH4Cl -> garam sifat asam (pakai hidrolisis)
[H+]=√((Kw/Kb)*M*valensi garam)
      = √(10⁻⁹*0,1*1)
      =10⁻⁵
pH=5