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mol (NH4)SO4 = M.vol = 0.05. 250= 12,5
hidrolisis. basa lebah dan asam kuat
[H+]=√10^-14 / 2.10^-5 x 12,5
=√6,25 .10^-9
=2,5 . 10^-4,5
ph=4,5 - log 2,5
kalu=au tidak salah begitu caranya. kalau salah maafkan.
yg dimaksud ka nh4oh munghkn kb. karena nh4oh itu basa