Dissociation constant of dihydrophosphate?

[HardWork1]

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Check the question in the attached file. Can you solve it?

 

[AFLATPEG]

check the question in the attached file. Can you solve it?

c?

 

[HardWork1]

How can you solve it?

 

[Postictal Raiden]

How can you solve it?

At the buffering region, the pH is equals to the pKa, so the pKa is also X.

Now, calculate Ka from the pKa and you get 10^(-x).

 

[AFLATPEG]

How can you solve it?

pKa= -log (Ka)

since pKa=X, plug that in & solve for Ka.

 

[HardWork1]

Thanks, now I get it.