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27 December, 20:43

What is the ph of a 0.0075 m concentration of hydrochloric acid hcl? 0.50 1.1 2.1 3.2?

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  1. 27 December, 22:38
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    The chemical formula for the hydrochloric acid is HCl. The concentration of H + in the solution is also equal to the concentration of the compound.

    concentration of H + = 0.0075M

    The pH is calculated through the equation,

    pH = - log[H+]

    where [H+] is the concentration.

    Substituting the known values,

    pH = - log (0.0075M) = 2.12

    Thus, the pH of the given hydrochloric acid is 2.1. The answer is the third choice.
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