Buffers are substances that????

Question

Buffers are substances that????

Answer 1

Buffers are mixtures of two chemicals that resist pH changes:

if the pH is too low one chemical will bind some of the hydrogen ions and raise the pH

if the pH is too high the other chemical will donate some hydrogen ions to lower the pH

The Chief Mammalian Blood Buffer is a Mixture of Bicarbonate and Carbon Dioxide -

CO2 acts as an acid (it forms carbonic acid when it dissolves in water), donating hydrogen ions when they are needed

HCO3 is a base, soaking up hydrogen ions when there are too many of them

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