Jawabanmu

2014-04-08T09:55:35+07:00
PH = 14 - pOH 9 = 14 - pOH pOH = 14-9 pOH = 5 pOH = pKb x mmol bs/mmol garam 5 = 5 x 500.0,1/mmol garam mmol garam = 250/5 mmol garam = 50 mmol garam (amonium sulfat) = mg/mr 50= x/132 50/132 = x 0,378 = x sebanyak 0,378 mg (NH4)2SO4 yang harus ditambahkan.