Question

In human blood the main buffer is

Answer 1

Human blood contains a buffer of carbonic acid (H 2CO 3) and bicarbonate anion (HCO 3 -) in order to maintain blood pH between 7.35 and 7.45, as a value higher than 7.8 or lower than 6.8 can lead to death. In this buffer, hydronium and bicarbonate anion are in equilibrium with carbonic acid.

Answer 2

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