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OH- ada dua buah ==> maka n=2
HCl ==> H+ + Cl-
H+ ada 1 buah ==> maka n=1
M1 x V1 x n1 = M2 x V2 x n2
0,001M x 20ml x 2 = M2 x 5ml
M2 = 0,008 M
V₁ = 20 ml
M₁ = 0,001 M
n₁ = 2
HCl :
V₂ = 5 ml
n₂ = 1
Dik : M₂ = ....?
Jwb : V₂M₂n₂ = V₁M₁n₁
5. M₂.1 = 20.0,001.2
5.M₂ = 0,04
M₂ = 0,008 M