PH larutan NH4OH 0,1 M (Ka = 10-5 ) adalah ….

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PH larutan NH4OH 0,1 M (Ka = 10-5 ) adalah ….

Jawaban Terkonfirmasi

Jawaban:

pH larutan NH4OH = 11

Penjelasan:

Larutan NH4OH adalah larutan basa lemah

Ralat Kb = 10-5

[OH-] = √Kb Mb

[OH-] = √10-5 x 0,1

[OH-] = √10-6

[OH-] = 10-3 M

pOH = – log [OH-]

pOH = – log 10-3

pOH = 3

pH = 14 – pOH

pH = 11

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