ejoninamar81 ejoninamar81

09-02-2021
Chemistry

contestada

calculate the ph of a solution with a [H 3 0+]=7.2×10-8 M

Respuesta :

sebassandin sebassandin

14-02-2021

Answer:

pH = 7.14.

Explanation:

Hello there!

In this case, since the pH of a solution is computed via the negative logarithm of the concentration of hydrogen ions:

[tex]pH=-log([H_3O^+])[/tex]

Therefore, we plug in the given concentration to obtain:

[tex]pH=-log(7.2x10^{-8})\\\\pH=7.14[/tex]

Which is a nearly-neutral solution.

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