Penjelasan:
pH= 8
POH= 6
OH- = 10^-6.
n NH4OH= 100 X 0,2=20.
n (NH4)2SO4= 500 X 0,02
= 10.
OH- = Kb x nb/ ng. b
10^-6.= Kb x (20/10. 2)
10^-6= Kb x 1
Kb= 10^-6 / 1
Kb= 10^-6
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Penjelasan:
pH= 8
POH= 6
OH- = 10^-6.
n NH4OH= 100 X 0,2=20.
n (NH4)2SO4= 500 X 0,02
= 10.
OH- = Kb x nb/ ng. b
10^-6.= Kb x (20/10. 2)
10^-6= Kb x 1
Kb= 10^-6 / 1
Kb= 10^-6