Buffers

Buffers

• A buffer is a solution consisting of either a weak acid or a weak base that can resist pH changes upon the addition of acidic or basic compounds

• The pKa and Ka of a buffer tells you the range it preserves ( XX x 10-x M)

• Biological systems tend to buffer around pH 7
• The blood is buffered by bicarbonate
• CO2 lowers pH and HCO3- increases it