Buatlah larutan KOH 0,8 M 300ml

Jawaban:

Diketahui :

Volume larutan KOH = 300 ml

Molaritas KOH = 0,8 M

b = Valensi basa

Ditanya : pH larutan ?

Jawab :

[OH-] :

= b . M

= 1 . 0,8 M

= 8-¹ M

pOH :

= – log [OH-]

= – log 8-¹

= 8

pH :

= 14 – pOH

= 14 – 8

= 6

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