Respuesta :

option (c) 1 × 10-9 m is the right answer.

The [oh−] of the solution  having a [h3o ] of 1 × 10−5 m is 1 × 10-9 m.

What is [OH−] of the solution?

  • The only component of water is H2O, and when the pH of the solution is 7, all of the ions have the same concentration, whereas during dissociation the water splits into H+ and OH- ions.

The concentration of OH- ions will be,

OH- = Kw {H3O+}

{H3O+} = 1 × 10−5 M.

Kw = 14

On substituting the value in the equation,

OH = 14 { 1 × 10−5 M.}

OH = 1 × 10−9 M

Consequently, the [H3O+] of the solution is 1 × 10-5 M.

Option (C) is the right choice because the [OH-] of the solution will be 1 × 10-9 M.

To learn more about [OH-]  of the solution visit:

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