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kifflom [539]
1 year ago
11

omplete the relationship between ph and pka for each of the following atomic view pictures of a buffered solution.

Chemistry
1 answer:
Yakvenalex [24]1 year ago
5 0

The relationship between pH and pKa of buffer solution in given atomic view:

In figure I  pH= pKa  ( since [HA] =[A-] )

In figure II pH > pKa ( since [A-] > [HA] )

In figure III pH < pKa ( since [A-] < [HA] )

The pH and pKa are related by the Henderson-Hasselbalch equation. It should not be used for concentrated solutions, extremely low pH acids, or extremely high pH bases because it is simply an approximation.

pH =  pKa + log(conjugate base/weak acid).

pH equals pKa plus log ([A-] / [HA]).

pH is determined by dividing the weak acid concentration by the log of the conjugate base concentration and the pKa value.

About halfway to the equivalence point:

pH = pKa

It's important to note that this equation is familiar with the connection because it is sometimes written for the Ka value rather than the pKa value.

pKa = – log Ka

Hence, value of pH depend on relative concentration of [A-]  and HA]

To know more about Ka.

brainly.com/question/16035742

#SPJ4

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