Hydrogen Phosphate Buffer System
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Buffer solutions have the unique ability to resist changes in PH when an acid or base is added to them. One important buffer system that helps to maintain blood pH at a constant value of 7.4 is the hydrogen phosphate buffer. The chemical equation for this for this buffer system is: H2PO4 (negative) (aq) + H2O (l) <>H3O (positive) (aq) + HPO4 (negative 2).
Use Le Chatelier's Principle to explain why the pH of a hydrogen phosphate buffer system remains constant when:
(a) Small amounts of acid are added
(b) Small amounts of base are added
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Solution Summary
The following problem helps with a physical chemistry problem. This solution explains why the pH of a hydrogen phosphate buffer system remains constant when small amounts of acid/or base are added.
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Problem: Use Le Chatelier's Principle to explain why the pH of a hydrogen phosphate buffer system remains constant when:
(a) Small amounts of acid are added
(b) Small amounts of base are added
Solution:
Le Chatelier's principle states that whenever a ...
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