Chemistry: You have made 1.00 l of an aqueous buffer solution that is 100 mm in both sodium acetate and acetic acid. what is the ph?

no. other elements beside sodium may have yellow-orange emissions as well...

You have made 1.00 l of an aqueous buffer solution

lexus7493

30.12.2021

pH = pKa = 4.75

Explanation:

The pH of a buffer solution is calculated using Henderson Hassalbalch's equation.

The equation is:

$pH=pKa+log\frac{[salt]}{[acid]}$

Where

pKa = -log (Ka) = 4.75 [for acetic acid]

[salt] = concentration of salt or the conjugate base, in the given example it is sodium acetate

[acid] = concentration of acid , here it is acetic acid

As given that the concentration of both the salt and acid is same it means

$pH = 4.75+log\frac{100}{100}=4.75+log(1)=4.75+0=4.75$

Thus the pH of solution will be equal to its pKa.

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