What is the pH of a buffer that consists of 0.254 M CH3CH2COONa and 0.329 M CH3CH2COOH? Ka of propanoic acid, CH3CH2COOH is 1.3 x 10-5 Enter your answer with two decimal places.

4.77 is the pH of the given buffer .

Explanation:

To calculate the pH of acidic buffer, we use the equation given by Henderson Hasselbalch:

We are given:

= Dissociation constant of propanoic acid =

pH = ?

Putting values in above equation, we get:

pH = 4.77

4.77 is the pH of the given buffer .

- both b and d.

-since b and d are the closest coastlines then that makes it the most affected.

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