# Concentration of Carbon dioxide in Blood

Let's say we're able to decrease concentration of carbon dioxide in blood, how will the pH of the blood be affected?

My Reasoning : Since blood has approximately 92% water, it is safe to assume the carbon dioxide being acidic forms weakly acidic Carbolic acid thereby decreasing the concentration of Protic water resulting in an increased pH, therefore decreasing concentration of carbon dioxide should decrease pH of blood.

However this is not the answer, pH of blood would significantly increase if concentration of carbon dioxide decreases, where am I going wrong? (perhaps hemoglobin has a role?)

• This is a well understood process: en.wikipedia.org/wiki/Respiratory_alkalosis#Mechanism – Zhe Oct 22 '17 at 12:20
• You’re wrong at that point where you consider $\ce{H2CO3}$ to be the final species and forget the subsequent deprotonation equilibrium. – Jan Oct 22 '17 at 13:19
• Blood has a buffering capacity to maintain a relative stable pH. – blacksmith37 Oct 22 '17 at 20:03
• Google homeostasis. – Todd Minehardt Mar 24 '18 at 1:57