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18 February, 11:12

What is the [H₃O⁺] (hydronium concentration) of an aqueous solution that has a pH of 4.00?

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  1. 18 February, 11:36
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    Answer: 0.0001M

    Explanation:

    Given that:

    [H₃O⁺] (hydronium concentration) = ?

    pH of aqueous solution = 4.00

    pH is the negative logarithm of hydrogen ion [H+] or hydroxonium ion [H₃O⁺] in a solution. Mathematically it is expressed as:

    pH = - log[H₃O⁺]

    4.00 = - log[H₃O⁺]

    [H₃O⁺] = Antilog (-4.00)

    [H₃O⁺] = 0.0001M

    Thus, 0.0001M is the [H₃O⁺] (hydronium concentration) of an aqueous solution that has a pH of 4.00
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