Jawaban:
4.70
Penjelasan:
AK + BL, dengan kb = (anggap 10^-5)
mol NH4OH = HCl = 200 * 0.8 = 160 mmol (sama)
M Garam = 160 mmol / 400 ml = 0.4 M
H+ = √(kw.[G}/kb) = √(10^-14*0.4/10^-5)
H+ = 2 * 10^-5
PH = 5 - log 2
PH = 4.70
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Jawaban:
4.70
Penjelasan:
AK + BL, dengan kb = (anggap 10^-5)
mol NH4OH = HCl = 200 * 0.8 = 160 mmol (sama)
M Garam = 160 mmol / 400 ml = 0.4 M
H+ = √(kw.[G}/kb) = √(10^-14*0.4/10^-5)
H+ = 2 * 10^-5
PH = 5 - log 2
PH = 4.70