1) Hitunglah PH larutan NaOH 0,1N

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2)hitunglah PH larutan HCl 0,1N
3)Hitunglah PH larutan CH3COOH 0,1N

1) Hitunglah PH larutan NaOH 0,1N

NaOH –> Na+ + OH-
[OH-] = 0.1
pOH = -log[OH-] = -log 10^-1 = 1
pH = pKw – pOH = 14 – 1 =13

2.
HCl –> H+ +Cl-
[H+] = 0.1
pH = -log[H+] = -log10^-1 = 1

3.
CH3COOH <–> CH3COO- + H+
K = [CH3COO-].[H+]/[CH3COOH]
10^-5 = [H+]^2 / 10^-1
[H+] = 10^-3

pH = -log[H+] = -log10^-3 = 3