An acid–base buffer system A. Can be a mixture of a weak acid and i

1.	An acid–base buffer system A. Can be a mixture of a weak acid and its conjugate base. B. Can be a solution of sodium and bicarbonate ions. C. Prevents any change in pH when acid is added. D. Works best when acid and base are equal in concentration. E. With pK=4 would be a better blood buffer than one with pK=6.
Answer» 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.

An acid–base buffer system A. Can be a mixture of a weak acid and its conjugate base. B. Can be a solution of sodium and bicarbonate ions. C. Prevents any change in pH when acid is added. D. Works best when acid and base are equal in concentration. E. With pK=4 would be a better blood buffer than one with pK=6.

Answer»

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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