Answer:
7.3
Step-by-step explanation:
pH is a term used to describe how acidic or basic a substance or aqueous solution is, and is measured on a scale ranging from 0 to 14. A pH of 7 is considered to be neutral. A solution with a pH less than 7 is acidic and has a higher concentration of H+ ions, while a solution with a pH greater than 7 is basic and has a lower concentration of H+ ions. Each change in pH unit is a tenfold change; for example, a pH of 3 is ten times more acidic than a pH of 4.
The pH of blood is about 7.3, making it slightly basic. The pH level should remain consistent in order for our bodily functions to work properly. Our lungs and kidneys play a big role in regulating our blood pH level. For example, our kidneys remove acids through urine. If the pH of blood becomes too acidic, a condition known as acidosis can occur, in which acid builds up in the blood. If the pH becomes too basic, excess base builds up and results in alkalosis. pH changes of the blood are usually caused by health conditions, especially ones that relate to the kidney or lungs. If left untreated, it can lead to severe illness.