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krok68 [10]
3 years ago
15

What is the pH of a 0.75 M HNO3 solution

Chemistry
2 answers:
pogonyaev3 years ago
6 0

<u>Answer:</u> The pH of the solution is 0.125

<u>Explanation:</u>

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

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

pH=-\log[H^+]

The chemical equation for the dissociation of nitric acid follows:

HNO_3\rightarrow H^++NO_3^-

By stoichiometry of the reaction:

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

So,

[H^+]=0.75M

Putting values in above equation, we get:

pH=-\log(0.75)\\\\pH=0.125

Hence, the pH of the solution is 0.125

Sauron [17]3 years ago
4 0
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:

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

So, the pH would be 0,12

Have a nice day!
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