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What are the ratios of [CO2]/[HCO− 3 ]/[CO2− 3 ] in blood plasma at pH 7.2?

What are the ratios of [CO2]/[HCO− 3 ]/[CO2− 3 ] in blood plasma at pH 7.2?

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Answer #1

Using Henderson-Hasselbalch Equation

pK = 6.1 at normal body temperature

Now we knw about the follwing equilibrium in the blood

therefore dissolved CO2 has the same concentration as that of H2CO3

.

At 370C pKa of dissociation of carbonic acid to carbonate is 9.8

thus

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