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swat32
3 years ago
7

What is the pH of an acetic acid solution where the concentration of acetic acid is 2 mM and the concentration of sodium acetate

is 20 mM. The pKa of acetic acid is 4.76.
Chemistry
1 answer:
schepotkina [342]3 years ago
6 0

Answer:

pH = 5.76

Explanation:

We can solve this problem by using<em> Henderson-Hasselbach's equation</em>:

pH = pKa + log\frac{[SodiumAcetate]}{[AceticAcid]}

We are already know all the required information, thus we<u> input the data given by the problem</u>:

pH = 4.76 + log(20/2)

And finally <u>calculate the pH</u>:

pH = 5.76

The pH of that acetic acid solution is 5.76.

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The half-life is the time of half-disintegration, it is the time in which half of the atoms of an isotope disintegrate.

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\boxed{\boxed{m \approx 8.85\:mg}}\end{array}}\qquad\checkmark

I Hope this helps, greetings ... DexteR! =)

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