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mixter17
Hello!

The dissociation reaction of HNO₃ is the following:

HNO₃ → H⁺ + NO₃⁻

This is a strong acid, so the concentration of HNO₃ would be the same as the concentration of H⁺. The formula for pH is the following:

[tex]pH=-log([H_3O^{+}])=-log(0,75M)=0,12[/tex]

So, the pH would be 0,12

Have a nice day!

Answer: The pH of the solution is 0.125

Explanation:

pH is the negative logarithm of hydrogen ion concentration present in a solution.

To calculate the pH of the reaction, we use the equation:

[tex]pH=-\log[H^+][/tex]

The chemical equation for the dissociation of nitric acid follows:

[tex]HNO_3\rightarrow H^++NO_3^-[/tex]

By stoichiometry of the reaction:

1 mole of nitric acid produces 1 mole of hydrogen ions and 1 mole of nitrate ions.

So,

[tex][H^+]=0.75M[/tex]

Putting values in above equation, we get:

[tex]pH=-\log(0.75)\\\\pH=0.125[/tex]

Hence, the pH of the solution is 0.125

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