Answer :

The pH of a 0.023 M [tex]HNO_{3}[/tex] solution is approximately 1.64 (Option C).

How to determine the pH of a solution?

To determine the pH of a 0.023 M [tex]HNO_{3}[/tex] solution, we need to consider the following terms: concentration (Molarity), pH, and the ionization of [tex]HNO_{3}[/tex] . [tex]HNO_{3}[/tex] is a strong acid, meaning it fully ionizes in water.

Step 1: Identify the concentration of [tex]HNO_{3}[/tex] , which is given as 0.023 M.
Step 2: Since [tex]HNO_{3}[/tex] is a strong acid, it will completely dissociate into H+ and NO3- ions. The concentration of H+ ions will be equal to the concentration of [tex]HNO_{3}[/tex] , which is 0.023 M.
Step 3: Use the pH formula: pH = -log[H+]. In this case, pH = -log(0.023).
Step 4: Calculate the pH: pH ≈ 1.64.

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