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M1 = 0,1 M
V2 = 250 cm³
Dit : perubahan pH = ?
Jwb : V2 x M2 = M1 x V1
250 x M2 = 0,1 x 100
M2 = 10/250 = 0,04 M
pH1 = -log(0,1)
= 1
pH2 = -log(0,04)
= 2 -log4
ΔpH = 2-log4 - 1 = 1 -log4