The pH of the mixture is 7.30 according to the equation.
<h2>What is pH?</h2>
The pH measures the concentration of hydrogen ions in a solution as well as its acidity or alkalinity.
Normally, the pH scale runs from 0 to 14. Acidic aqueous solutions at 25 °C are those with a pH below 7, and basic or alkaline solutions are those with a pH above 7.
NaClO and HClO make up the buffer solution that is provided.
For the aforementioned buffer, HClO serves as our weak acid component while NaClO serves as our conjugate base component.
We will use the Henderson-Hasselbalch equation to determine the pH of the buffer solution, thus it is crucial to identify the weak acid and conjugate base component.
The conjugate base concentration and weak acid concentration of the buffer solution must be given in the equation.
The pKa value of the buffer solution must first be determined.
pKa = -log Ka
pKa = -log (3.8 * 10-8)
pKa = 7.42
The pH of the HClO-NaClO buffer solution can now be calculated using the Henderson-Hasselbalch equation.
pH = pKa + log[(conjugate base)(weak acid)]
pH = 7.42
pH = 7.42 + log[0.131M0.172M]
pH = 7.30
Hence,
The pH of the mixture is 7.30 according to the equation.
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