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Assuming complete dissociation, calculate the pH of the following solutions: 0.005 M NaOH - Chemistry

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प्रश्न

Assuming complete dissociation, calculate the pH of the following solution:

0.005 M NaOH 

संख्यात्मक
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उत्तर

\[\ce{NaOH_{(aq)} ↔ Na^+_{(aq)}  + HO^-_{(aq)}}\]

`["HO"^-] = ["NaOH"]`

`=> ["HO"^-] = 0.005`

`"pOH" = - log["HO"^(-)] = -log(0.005)`

pOH = 2.30

∴ pH = 14 - 2.30

= 11.70

Hence, the pH of the solution is 11.70.

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