acid becaus he compound bicarbonate (H COs) in an aqueous solution. Bicarbonate

Question

acid becaus he compound bicarbonate (H COs) in an aqueous solution. Bicarbonate is considered a acid because it dissociates into form,1 an ionic form, losing a proton (H + HCOs) The pKa for bicarbonate is 3.77, a is 7.4. What form of bicarbonate would you expect at this physiological pH? Exie pHI forl Explain your answer (4 pts) and the pH for blood plasma osing What form b. A patient is hyperventilating, which is characterized by breathing rate that is more rapid than necessary f normal CO2 elimination. Explain how the pH of blood plasma changes during hyperventilation (2 pts)

Explanation / Answer

Since bicarbonate is a buffer and is very important to maintain acid-base balance, at physiological ph it exists in blood in bicarbonate form ie HCO3-  in the ratio of 20:1 to H2CO3 to maintain homeostasis.

2. The ph of blood increases during hyperventilation as more CO2 is removed from the blood. In other words, hyperventilation causes alkalosis and is fatal if not treated.

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