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13 September, 07:05

What is the [H30+] in a solution with (OH) = 1.0 x 10-12 M?

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  1. 13 September, 09:36
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    Concentration of hydronium ion, H3O + is 1x10^-2 M

    Explanation:

    The following data were obtained from the question:

    Concentration of Hydroxide ion, [OH-] = 1.0x10^-12 M

    Concentration of hydronium ion, [H3O+] = ?

    Next, we shall determine the pOH of the solution. This is illustrated below below:

    pOH = - Log [OH-]

    pOH = - Log 1.0x10^-12

    pOH = 12

    Next, we shall determine the pH of the solution.

    pH + pOH = 14

    pOH = 12

    pH + 12 = 14

    Collect like terms

    pH = 14 - 12

    pH = 2

    Finally, we shall determine the Concentration of hydronium ion, [H3O+] as follow:

    pH = - log [H3O+]

    pH = 2

    2 = - log [H3O+]

    - 2 = log [H3O+]

    [H3O+] = Antilog (-2)

    [H3O+] = 0.01M = 1x10^-2 M
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