Define one of the buffers to maintain the ph of blood

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Reference no: EM13715879

Question- One of the buffers to maintain the pH of blood uses phosphoric acid, H3PO4, buffer. Phosphoric acid is triprotic and it's equilibrium constants are Ka1=7.5x10-3, Ka2=6.2x10-8, and Ka3=3.6x10-13. How would we prepare 2.0L of a phosphoric acid buffer of a pH of 7.2 from 0.500 M H3PO4? We have available 2.00 M NaOH, NaH2PO4 (MW=120.0), Na2HPO4 (MW=142.00) and Na3PO4 (MW=164)

Hint: First decide which acid-base pair to use.

Write your solution in appropriate format and provide references

Reference no: EM13715879

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