sebanyak 100ml larutan nh3 0,4m kb= 2×10^-5 direaksikan dengan 100ml larutan hcl 0,4m hitung ph larutan garam tersebut

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sebanyak 100ml larutan nh3 0,4m kb= 2×10^-5 direaksikan dengan 100ml larutan hcl 0,4m hitung ph larutan garam tersebut

NH3 + HCl –> NH4Cl
40. 40. —
40. 40. 40
— — 40

[H+] = akar(Kw/Kb × Mgaram × valensi)
[H+] = akar(10^-14/2×10^-5 × 40/200 × 1)
[H+] = akar(10^-10)
[H+] = 10^-5
pH = 5.
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