October 2018 1 33 Report
Tolong bantu mengerjakan menggunakan caranya ya..
pH larutan penyangga yang terbuat dari 100mL larutan NH3 O,2 M dan 50mL Larutan HCl 0,2 M adalah......... (Kb NH3 = 1 x 10 pangkat -5)
a. 5
b 6
c. 7
d. 9
e. 10
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