QUESTION 25 2.5 points Which acid, together with its sodium salt, would be best for preparing a buffer with a pH =...

Question

Question

science chemistry

Answer 1

Answer #1

For next buffer, pH should be closest to pKa of the acid.

So, pKa of the acid should be around 4.5

use:

pKa = -log Ka

4.5 = -log Ka

Ka = 3.16*10^-5

Ka value closest is for option 2

Answer: option 2

Answer 2

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