CHEM 102 Lecture 4: Buffers
21 Mar 2016
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Document Summary
Significant amounts of a weak acid and its conjugate base. Significant amounts of a weak base and its conjugate acid: example of a buffer system in nature. Blood has a mixture of h2co3 and hco3. Oh- to make f- and water: similarly, if acid is added, the f- reacts with it to form hf and water. An acidic buffer solution: adding a strong base to an acidic buffer. If a strong base is added to the buffer solution, the added base is neutralized by the weak acid component in the buffer. If the amount of naoh added is less than the amount of acetic acid present, the ph change is small: adding a strong acid to an acidic buffer. If a strong acid is added, the added acid is neutralized by the conjugate base component in the buffer. Hcl(aq) + nac2h3o2 (aq) -> nac2h3o2 (aq) + nacl(aq)
