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The normal pH of blood is 7.40 ± 0.05 and is controlled in part by the H₂CO₃/HCO⁻₃ buffer system.(b) In a condition called acidosis, the blood is too acidic. What is the [H₂CO₃] / [HCO⁻₃] ratio in a patient whose blood pH is 7.20?

Respuesta :

The [H₂CO₃] / [HCO⁻₃] ratio in a patient whose blood pH is 7.20= 6.8 to 1.

Steps

By using Henderson-Hasselbalch equation:

pH = pKa + log ([HCO³⁻] / [H₂CO₃])

pH = -log Ka + log ([HCO³⁻] / [H₂CO₃])

7.2 = -log (4.3 × 10⁻⁷) + log ([HCO³⁻] / [H₂CO₃])

log ([HCO³⁻] / [H₂CO₃]) = 0.83347

[HCO³⁻] / [H₂CO₃] = 10^0.83 = 6.8

Hence, the ratio of HCO³⁻ to H₂CO₃ would be 6.8 to 1.

What does the blood's pH indicate?

Blood's pH indicates how acidic it is. Blood in arteries typically has a pH between 7.35 and 7.45. The blood pH is regulated by a complex system of mechanisms and feedback loops that maintain the body functioning normally. A health issue that needs to be addressed can be indicated when the pH of the blood changes.

learn more about Blood pH here

https://brainly.com/question/11209525

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