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18 December, 06:37

What is the pH of an aqueous solution with the hydronium ion concentration : [H3O+] = 6.3 x 10-6 M?

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  1. 18 December, 06:40
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    pH = 5.2

    Explanation:

    pH of a solution is defined as the concentration of hydrogen ion in a solution. It is also the negative logarithmic value of the concentration of hydrogen ion. It determines the acidity or alkalinity of a solution.

    HA (aq) + H2O (l) - -> A - (aq) + H3O + (aq)

    pH = - log[H3O+]

    = - log [6.3 x 10-6]

    = 5.200
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