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12 November, 23:11

Calculate the concentration of hydronium in a solution that contains 5.5x10-5 M OH - at 25C. Indentify the solution as acidic, basic, or neutral.

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  1. 13 November, 01:41
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    pH = 9.74

    The solution is basic

    Explanation:

    To find the pH of the solution, we need to find the pOH of the solution.

    From the question, the concentration of OH^ - = 5.5x10^-5 M

    pOH = - Log[OH^-]

    pOH = - Log 5.5x10^-5

    pOH = 4.26

    Recall,

    pH + pOH = 14

    pH = 14 - pOH

    pH = 14 - 4.26

    pH = 9.74

    Since the pH is above 7, the solution is alkaline ie basic
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