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24 February, 09:31

What is the pH of a substance with a hydrogen ion concentration of 1 x 10-3 M?

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  1. 24 February, 09:53
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    The pH of the substance is 3.

    Explanation:

    Given:

    Concentration of hydrogen ion, [H⁺] = 10⁻³M

    pH = ?

    The pH of a solution is a measure of the molar concentration of hydrogen ions in the solution and as such is a measure of the acidity or basicity of the solution.

    pH = - log [H⁺]

    pH = - log [10⁻³]

    pH = 3 log [10]

    pH = 3

    The pH of the substance is 3 and since the pH is less than 7, the substance is acidic in nature.
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