Q:

An acid–base buffer system

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An acid–base buffer system.


  1. Can be a mixture of a weak acid and its conjugate base
  2. Can be a solution of sodium and bicarbonate ions.
  3. Prevents any change in pH when acid is added
  4. Works best when acid and base are equal in concentration
  5. . With pK=4 would be a better blood buffer than one with pK=6.

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A. True Or a mixture of a weak base with its conjugate acid.

B. False It can be a mixture of carbonic acid and bicarbonate ions.

C. False It minimizes, but does not prevent, pH change.

D. True pH=pK+log [base]/[acid]; log 1=0.

E. False pK should be near blood pH, which is 7 4.

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