Find the hydroxide ion concentration [OH-] of an HCl solution with a pH of 6.93.

Question

Find the hydroxide ion concentration [OH-] of an HCl solution with a pH of 6.93.

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Sigridomena 4 years 2021-08-06T01:02:21+00:00 1 Answers 8 views 0

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  1. Farah
    0
    2021-08-06T01:03:24+00:00
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    Answer:

    [OH-] = 1.8 x 10^-7

    Explanation:

    pH + pOH = 14 –> 6.93 + pOH = 14 *subtract 6.93 from both sides

    pOH = 7.07

    –>

    10^pH => 10^-6.93 => 1e – 6.93 [H+]

    –>

    H+ x OH- = 1 x 10^-6.93 *divide H+ from both sides

    –>

    [OH-] = 1.17 x 10^-7 or 1.8 x 10^-7

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