Biochemistry - Water, pH and Macromolecules - Discussion

Discussion Forum : Water, pH and Macromolecules - Section 1 (Q.No. 2)
Polyprotic acids such as H3PO4, can act as acid-base buffers
only in combination with polyprotic bases
if their concentration is kept low
at pH values around neutrality
at pH values around any of their pKa's
Answer: Option
No answer description is available. Let's discuss.
6 comments Page 1 of 1.

Neetu said:   5 years ago
What is the value of Pk?

Nothile said:   7 years ago
You can determine ph if you know your pka value.

ARNOLD said:   7 years ago
With the pH at its pKa there's more ease and chance in losing a hydrogen atom enabling it to act as a buffer.

Daniel owen gibson said:   1 decade ago
The evidence is proven in organic applications in biochemistry.

Balul9 said:   1 decade ago
A polyprotic acid contains more than one acidic hydrogen.

If H3Po4 dissolved in solution following equilibria observed.

H3PO4=====>HPO4-2 (hydrogen phosphate anion) +PO4-3 (phosphate anion) ;.

Sundar said:   1 decade ago
Can anyone explain this in detail?

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