pH larutan 0,02 M basa lemah LOH adalah 11+log 4. Tentukan berapa pH larutan yang terjadi jika ke dalam 100 ml larutan 0,03 M LOH dimasukkan 150 ml larutan 0,02 M HBr!
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150 x 0.02 = 3
berarti pH netral
H = Ka x a/g
H = 1.3 x 10-3 . 3/3
H = 1.3 x 10-3
pH = - log (1.3 x 10-3)
pH = log 3 - 1.3