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26 June, 13:27

A solution has [oh-] = 4.0*10-8. what is the value of [h+] for the solution? answers

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  1. 26 June, 13:45
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    Answer is: the hydrogen ion concentration is 2,5·10⁻⁷ M.

    [OH ⁻] = 4,0·10⁻⁸ mol/L, equilibrium concentration of hydroxide anion.

    [H ⁺] is the concentration of hydrogen ions.

    [OH ⁻] · [H⁺] = 10⁻¹⁴ mol²/L², ionic product of water on room temperature.

    [H ⁺] = 10⁻¹⁴ mol²/L² : 4·10⁻⁸ mol/L.

    [H ⁺] = 2,5·10⁻⁷ mol/L = 0,00000025 mol/L.
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