eLg Posted May 25, 2013 Share Posted May 25, 2013 (edited) Hi, Why is the solubility of oxygen in blood greater than its solubility in pure water? I need to have an answer that relates to solubility, temperature and pressure. I read about Henry's law, but its not that clear to me because my teacher did not discuss Henry's law in class. Edited May 25, 2013 by eLg Link to comment Share on other sites More sharing options...
EdEarl Posted May 25, 2013 Share Posted May 25, 2013 Probably because hemoglobin really likes oxygen, and the process of blood taking oxygen is not the same as dissolving oxygen in water. 1 Link to comment Share on other sites More sharing options...
Amaton Posted May 26, 2013 Share Posted May 26, 2013 Hi, Why is the solubility of oxygen in blood greater than its solubility in pure water? I need to have an answer that relates to solubility, temperature and pressure. I read about Henry's law, but its not that clear to me because my teacher did not discuss Henry's law in class. Are you required to use Henry's Law in your answer? If so, that could majorly change your approach. Otherwise, I agree with EdEarl. I think the question is more endemic to chemical change than purely physical properties (i.e. how hemoglobin binding plays a role). Link to comment Share on other sites More sharing options...
eLg Posted May 26, 2013 Author Share Posted May 26, 2013 Are you required to use Henry's Law in your answer? If so, that could majorly change your approach. Otherwise, I agree with EdEarl. I think the question is more endemic to chemical change than purely physical properties (i.e. how hemoglobin binding plays a role) Is it possible not to use the henry's law? Link to comment Share on other sites More sharing options...
John Cuthber Posted May 26, 2013 Share Posted May 26, 2013 Henry's law says that the amount of a gas that dissolves is directly proportional to the pressure. So a graph of the amount dissolved versus pressure would be a straight line Here's the graph for haemoglobin http://www.bio.davidson.edu/Courses/anphys/1999/Dickens/Oxygendissociation.htm It's clearly not a straight line. So you can't use Henry's law. Link to comment Share on other sites More sharing options...
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