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A lab assistant prepared a solution by a...

A lab assistant prepared a solution by adding a calculated quantity of HCI gas `25^@ C` to get a solution with `[H_3O^+]=4xx10^(-5)`M. Is the solution neutral (or) acidic (or) basic.

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`[H_3O^+]=4xx10^(-5)M`
`pH=-logp[H_3 O^+]`
`=-log(4xx10^(-5))`
`pH=4.398`
The solution is basic.
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