Respuesta :

Solution:

[tex][\text{H}^{+}] = 10^{-\text{pH}}[/tex]

[tex][\text{H}^{+}] = 10^{-1.65}[/tex]

[tex]\boxed{[\text{H}^{+}] = 2.2 × 10^{-2} \: M}[/tex]

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