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pH of a solution is 5.5 at 25^(@)C. Calc...

pH of a solution is 5.5 at `25^(@)C`. Calculate its `[OH^(-)]`

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Verified by Experts

`pH+pOH=14.0`
`therefore pOH=14.0-pH`
`=14.0 -5.5 =8.50`
`pOH=8.5" "therefore "antilog" [-pOH]`
`therefore [OH^-]= "antilog" [-8.5]=3.2xx10^-9 M`.
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