How can you experimentally determine the pka of acetic acid

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Join Clutch Prep Get a better grade with hundreds of hours of expert tutoring videos for your textbook Continue Continue OR Password must contain at least one uppercase letter, a number and a specific symbol. Problem : How can you experimentally determine the pKa of acetic acid? Determine the pH at the end-point on the pH titration curve for acetic acid. Problem Details How can you experimentally determine the pKa of acetic acid? Put about ml of distilled water into the beaker and add exactly 10 ml of 0.

Fill 0. Attach the pH electrode so that on the one hand the measuring diaphragm is completely immersed and on the other hand the glass membrane cannot be damaged by the rotating stirrer bar.

In order to mark the equivalence point, you may add some drops of a phenolphthalein solution as an indicator. In order to obtain accurate measuring results, you have to calibrate the pH electrode when you use it for the first time.

Afterwards the calibration should be repeated from time to time:. The associated values are written below in the status line and can be inserted as text at an arbitrary place in the diagram.

By neutralizing a hydrochloric acid solution of the same pH value as the present acetic acid solution approx.