Chemistry Practice Problems Ka and Kb Practice Problems Solution: The average pH of normal arterial blood is 7.40. A...

Solution: The average pH of normal arterial blood is 7.40. At normal body temperature (37oC), Kw=2.4 10-14.Calculate [H+] and [OH-] for blood at this temperature.

Problem

The average pH of normal arterial blood is 7.40. At normal body temperature (37oC), Kw=2.4 10-14.

Calculate [H+] and [OH-] for blood at this temperature.

Solution

We’re being asked to determine the [H+] and [OH-of blood which has a pH of 7.40.


Recall that Kw is the autoionization constant of water, and is given by:


Kw=H+OH-


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